HootRated mascot HootRated

Books by Mary Pope Osborne

114 books by Mary Pope Osborne, rated for reading level and content intensity.

Mary Pope Osborne has 49 rated books in HootRated's catalog spanning Grade 2–7 reading level. The typical Mary Pope Osborne book lands at Grade 3, with average content intensity 1.5/5. Mary Pope Osborne's books span 12 series, including Stepping Stone; Magic Tree House, Magic Tree House; Magic Tree House: Merlin Missions; Stepping Stone, Magic Tree House; Stepping Stone; Magic Tree House: Merlin Missions, and 9 more.

Reading level alone doesn't tell parents whether a Mary Pope Osborne book is right for a child. 94% of Mary Pope Osborne's rated titles are at Gentle or Mild intensity — appropriate for sensitive readers or kids reading ahead of their emotional readiness. 0% are rated Intense or Very Intense. The intensity badges below (green → red) help you match books to your child's emotional readiness, not just their reading ability. See our methodology for how we rate.

Stage fright on a summer night

Mary Pope Osborne

Cover of Stage fright on a summer night

Stage fright on a summer night

Mary Pope Osborne

Level 3-4 Gentle

New York's bravest

Mary Pope Osborne

Cover of New York's bravest

New York's bravest

Mary Pope Osborne

Level 1-2

Summer of the sea serpent

Mary Pope Osborne

Cover of Summer of the sea serpent

Summer of the sea serpent

Mary Pope Osborne

Level 3-4 Mild

Carnival at candlelight

Mary Pope Osborne

Cover of Carnival at candlelight

Carnival at candlelight

Mary Pope Osborne

Level 3-4

Blizzard of the blue moon

Mary Pope Osborne

Cover of Blizzard of the blue moon

Blizzard of the blue moon

Mary Pope Osborne

Level 3-4 Mild

Una tarde en el Amazonas

Mary Pope Osborne

Cover of Una tarde en el Amazonas

Una tarde en el Amazonas

Mary Pope Osborne

Level 3-4

Polar Bears Past Bedtime

Mary Pope Osborne

Cover of Polar Bears Past Bedtime

Polar Bears Past Bedtime

Mary Pope Osborne

Level 3-4

I'm a Big Sister Lap Edition

Mary Pope Osborne

Cover of I'm a Big Sister Lap Edition

I'm a Big Sister Lap Edition

Mary Pope Osborne

Level K-1

Evolution (Let's Read and Find Out Science Books)

Mary Pope Osborne

Cover of Evolution (Let's Read and Find Out Science Books)

Evolution (Let's Read and Find Out Science Books)

Mary Pope Osborne

Level 2

Magic Tree House Collection Volume 1: Books 1-4

Mary Pope Osborne

Cover of Magic Tree House Collection Volume 1: Books 1-4

Magic Tree House Collection Volume 1: Books 1-4

Mary Pope Osborne

Level 6

Stallion by starlight

Mary Pope Osborne

Cover of Stallion by starlight

Stallion by starlight

Mary Pope Osborne

Level 3-4 Gentle

Soccer on Sunday

Mary Pope Osborne

Cover of Soccer on Sunday

Soccer on Sunday

Mary Pope Osborne

Level 4-5 Gentle

Happy Birthday, America

Mary Pope Osborne

Cover of Happy Birthday, America

Happy Birthday, America

Mary Pope Osborne

Level 1-2

Parents book of toilet teaching

Mary Pope Osborne

Cover of Parents book of toilet teaching

Parents book of toilet teaching

Mary Pope Osborne

Level 4-5

Good Morning, Gorillas

Mary Pope Osborne

Cover of Good Morning, Gorillas

Good Morning, Gorillas

Mary Pope Osborne

Level 3-4 Gentle

Thanksgiving on Thursday

Mary Pope Osborne

Cover of Thanksgiving on Thursday

Thanksgiving on Thursday

Mary Pope Osborne

Level 3-4 Gentle

Magic Tree House Boxed Set 1, Books 1-4

Mary Pope Osborne

Cover of Magic Tree House Boxed Set 1, Books 1-4

Magic Tree House Boxed Set 1, Books 1-4

Mary Pope Osborne

Level 3 Gentle

Blizzard of the blue moon

Mary Pope Osborne

Cover of Blizzard of the blue moon

Blizzard of the blue moon

Mary Pope Osborne

Level 3 Mild

Dark Day in the Deep Sea

Mary Pope Osborne

Cover of Dark Day in the Deep Sea

Dark Day in the Deep Sea

Mary Pope Osborne

Level 3-4 Gentle

Eve of the Emperor penguin

Mary Pope Osborne

Cover of Eve of the Emperor penguin

Eve of the Emperor penguin

Mary Pope Osborne

Level 3-4

A Good Night For Ghosts

Mary Pope Osborne

Cover of A Good Night For Ghosts

A Good Night For Ghosts

Mary Pope Osborne

Level 3-4

Rags and riches

Mary Pope Osborne

Cover of Rags and riches

Rags and riches

Mary Pope Osborne

Level 4-5

Dogs in the dead of night

Mary Pope Osborne

Cover of Dogs in the dead of night

Dogs in the dead of night

Mary Pope Osborne

Level 3-4 Gentle

Abe Lincoln at last!

Mary Pope Osborne

Cover of Abe Lincoln at last!

Abe Lincoln at last!

Mary Pope Osborne

Level 3-4

High Tide in Hawaii

Mary Pope Osborne

Cover of High Tide in Hawaii

High Tide in Hawaii

Mary Pope Osborne

Level 3-4 Mild

Dark Day in the Deep Sea

Mary Pope Osborne

Cover of Dark Day in the Deep Sea

Dark Day in the Deep Sea

Mary Pope Osborne

Level 3 Gentle

Rags and riches

Mary Pope Osborne

Cover of Rags and riches

Rags and riches

Mary Pope Osborne

Level 5

Horse Heroes

Mary Pope Osborne

Cover of Horse Heroes

Horse Heroes

Mary Pope Osborne

Level 5-6

Sharks and other predators

Mary Pope Osborne

Cover of Sharks and other predators

Sharks and other predators

Mary Pope Osborne

Level 5-6 Gentle

Spider Kane and the Mystery Under the May-Apple

Mary Pope Osborne

Cover of Spider Kane and the Mystery Under the May-Apple

Spider Kane and the Mystery Under the May-Apple

Mary Pope Osborne

Level 4-5

Magic Tree House Books #9-16 (9-16)

Mary Pope Osborne

Cover of Magic Tree House Books #9-16 (9-16)

Magic Tree House Books #9-16 (9-16)

Mary Pope Osborne

Level 4-5

My Secret War

Mary Pope Osborne

Cover of My Secret War

My Secret War

Mary Pope Osborne

Level 6

Favorite Greek Myths (Scholastic Book Guides, Grades 6-9)

Mary Pope Osborne

Cover of Favorite Greek Myths (Scholastic Book Guides, Grades 6-9)

Favorite Greek Myths (Scholastic Book Guides, Grades 6-9)

Mary Pope Osborne

Level 2

Good Morning, Gorillas

Mary Pope Osborne

Cover of Good Morning, Gorillas

Good Morning, Gorillas

Mary Pope Osborne

Level 3 Gentle

Rocking Horse Christmas

Mary Pope Osborne

Cover of Rocking Horse Christmas

Rocking Horse Christmas

Mary Pope Osborne

Level 2

Adaline Falling Star

Mary Pope Osborne

Cover of Adaline Falling Star

Adaline Falling Star

Mary Pope Osborne

Level 4-5

Warriors in Winter (Magic Tree House (R))

Mary Pope Osborne

Cover of Warriors in Winter (Magic Tree House (R))

Warriors in Winter (Magic Tree House (R))

Mary Pope Osborne

Level 3-4 Gentle

Warriors in Winter

Mary Pope Osborne

Cover of Warriors in Winter

Warriors in Winter

Mary Pope Osborne

Level 4-5

Late Lunch with Llamas

Mary Pope Osborne

Cover of Late Lunch with Llamas

Late Lunch with Llamas

Mary Pope Osborne

Level 3-4 Mild

A perfect time for pandas

Mary Pope Osborne

Cover of A perfect time for pandas

A perfect time for pandas

Mary Pope Osborne

Level 4-5

Danger in the darkest hour

Mary Pope Osborne

Cover of Danger in the darkest hour

Danger in the darkest hour

Mary Pope Osborne

Level 4-5

Balto of the Blue Dawn (Magic Tree House (R) Merlin Mission)

Mary Pope Osborne

Cover of Balto of the Blue Dawn (Magic Tree House (R) Merlin Mission)

Balto of the Blue Dawn (Magic Tree House (R) Merlin Mission)

Mary Pope Osborne

Level 3-4 Mild

Night of the Ninth Dragon (Magic Tree House (R) Merlin Mission)

Mary Pope Osborne

Cover of Night of the Ninth Dragon (Magic Tree House (R) Merlin Mission)

Night of the Ninth Dragon (Magic Tree House (R) Merlin Mission)

Mary Pope Osborne

Level 4 Gentle

Ms. Frizzle's Adventures: Medieval Castle

Mary Pope Osborne

Cover of Ms. Frizzle's Adventures: Medieval Castle

Ms. Frizzle's Adventures: Medieval Castle

Mary Pope Osborne

Level 2

The Magic School Bus Inside a Beehive

Mary Pope Osborne

Cover of The Magic School Bus Inside a Beehive

The Magic School Bus Inside a Beehive

Mary Pope Osborne

Level 2

Dinosaurs before dark

Mary Pope Osborne

Cover of Dinosaurs before dark

Dinosaurs before dark

Mary Pope Osborne

Level 3

Day of the Dragon King

Mary Pope Osborne

Cover of Day of the Dragon King

Day of the Dragon King

Mary Pope Osborne

Level 3

Knight at Dawn Graphic Novel

Mary Pope Osborne

Cover of Knight at Dawn Graphic Novel

Knight at Dawn Graphic Novel

Mary Pope Osborne

Level 2-3 Gentle

Mummies in the Morning Graphic Novel

Mary Pope Osborne

Cover of Mummies in the Morning Graphic Novel

Mummies in the Morning Graphic Novel

Mary Pope Osborne

Level 2-3

Pirates Past Noon Graphic Novel

Mary Pope Osborne

Cover of Pirates Past Noon Graphic Novel

Pirates Past Noon Graphic Novel

Mary Pope Osborne

Level 2-3 Mild

Sunlight on the Snow Leopard

Mary Pope Osborne

Cover of Sunlight on the Snow Leopard

Sunlight on the Snow Leopard

Mary Pope Osborne

Level 3-4 Gentle

Rhinos at Recess

Mary Pope Osborne

Cover of Rhinos at Recess

Rhinos at Recess

Mary Pope Osborne

Level 3-4 Moderate

Time of the Turtle King

Mary Pope Osborne

Cover of Time of the Turtle King

Time of the Turtle King

Mary Pope Osborne

Level 3-4

Time of the Turtle King

Mary Pope Osborne

Cover of Time of the Turtle King

Time of the Turtle King

Mary Pope Osborne

Level 4-5

Night of the Ninjas Graphic Novel

Mary Pope Osborne

Cover of Night of the Ninjas Graphic Novel

Night of the Ninjas Graphic Novel

Mary Pope Osborne

Level 2-3

Afternoon on the Amazon Graphic Novel

Mary Pope Osborne

Cover of Afternoon on the Amazon Graphic Novel

Afternoon on the Amazon Graphic Novel

Mary Pope Osborne

Level 2-3

Magic Tree House Fact Tracker Graphic Novel

Mary Pope Osborne

Cover of Magic Tree House Fact Tracker Graphic Novel

Magic Tree House Fact Tracker Graphic Novel

Mary Pope Osborne

Level 4-5

Sunset of the Sabertooth Graphic Novel

Mary Pope Osborne

Cover of Sunset of the Sabertooth Graphic Novel

Sunset of the Sabertooth Graphic Novel

Mary Pope Osborne

Level 2-3 Mild

Windy Night with Wild Horses

Mary Pope Osborne

Cover of Windy Night with Wild Horses

Windy Night with Wild Horses

Mary Pope Osborne

Level 3-4 Mild

Windy Night with Wild Horses

Mary Pope Osborne

Cover of Windy Night with Wild Horses

Windy Night with Wild Horses

Mary Pope Osborne

Level 4-5

Favorite Medieval Tales

Mary Pope Osborne

Cover of Favorite Medieval Tales

Favorite Medieval Tales

Mary Pope Osborne

Level 4-5

Night of the Ninjas

Mary Pope Osborne

Cover of Night of the Ninjas

Night of the Ninjas

Mary Pope Osborne

Level 3

Ghost Town at Sundown

Mary Pope Osborne

Cover of Ghost Town at Sundown

Ghost Town at Sundown

Mary Pope Osborne

Level 3

Lions at Lunchtime

Mary Pope Osborne

Cover of Lions at Lunchtime

Lions at Lunchtime

Mary Pope Osborne

Level 3

Hour of the Olympics

Mary Pope Osborne

Cover of Hour of the Olympics

Hour of the Olympics

Mary Pope Osborne

Level 3

Favorite Medieval Tales

Mary Pope Osborne

Cover of Favorite Medieval Tales

Favorite Medieval Tales

Mary Pope Osborne

Level 4-5

The Knight at Dawn

Mary Pope Osborne

Cover of The Knight at Dawn

The Knight at Dawn

Mary Pope Osborne

Level 2-3 Gentle

Run, Run, As Fast As You Can

Mary Pope Osborne

Cover of Run, Run, As Fast As You Can

Run, Run, As Fast As You Can

Mary Pope Osborne

Level 4-5

Night of the Ninjas

Mary Pope Osborne

Cover of Night of the Ninjas

Night of the Ninjas

Mary Pope Osborne

Level 2-3 Gentle

Dolphins at Daybreak

Mary Pope Osborne

Cover of Dolphins at Daybreak

Dolphins at Daybreak

Mary Pope Osborne

Level 3-4 Gentle

Lions at Lunchtime

Mary Pope Osborne

Cover of Lions at Lunchtime

Lions at Lunchtime

Mary Pope Osborne

Level 3 Gentle

Polar bears past bedtime

Mary Pope Osborne

Cover of Polar bears past bedtime

Polar bears past bedtime

Mary Pope Osborne

Level 3-4 Mild

Vacation Under the Volcano

Mary Pope Osborne

Cover of Vacation Under the Volcano

Vacation Under the Volcano

Mary Pope Osborne

Level 3-4 Mild

Day of the Dragon King

Mary Pope Osborne

Cover of Day of the Dragon King

Day of the Dragon King

Mary Pope Osborne

Level 3-4 Mild

Viking Ships at Sunrise

Mary Pope Osborne

Cover of Viking Ships at Sunrise

Viking Ships at Sunrise

Mary Pope Osborne

Level 3-4 Mild

Hour of the Olympics

Mary Pope Osborne

Cover of Hour of the Olympics

Hour of the Olympics

Mary Pope Osborne

Level 3-4 Gentle

Tonight on the Titanic

Mary Pope Osborne

Cover of Tonight on the Titanic

Tonight on the Titanic

Mary Pope Osborne

Level 3-4 Moderate

Buffalo Before Breakfast

Mary Pope Osborne

Cover of Buffalo Before Breakfast

Buffalo Before Breakfast

Mary Pope Osborne

Level 3-4 Mild

Tigers at Twilight

Mary Pope Osborne

Cover of Tigers at Twilight

Tigers at Twilight

Mary Pope Osborne

Level 3 Gentle

Dingoes at Dinnertime

Mary Pope Osborne

Cover of Dingoes at Dinnertime

Dingoes at Dinnertime

Mary Pope Osborne

Level 3-4 Mild

Civil War on Sunday

Mary Pope Osborne

Cover of Civil War on Sunday

Civil War on Sunday

Mary Pope Osborne

Level 3-4 Mild

Dinosaurs Before Dark

Mary Pope Osborne

Cover of Dinosaurs Before Dark

Dinosaurs Before Dark

Mary Pope Osborne

Level 2-3 Gentle

Pat-a-Cake

Mary Pope Osborne

Cover of Pat-a-Cake

Pat-a-Cake

Mary Pope Osborne

Level 2

The new baby at your house

Mary Pope Osborne

Cover of The new baby at your house

The new baby at your house

Mary Pope Osborne

Level 3

Haunted waters

Mary Pope Osborne

Cover of Haunted waters

Haunted waters

Mary Pope Osborne

Level 4-5

How You Were Born

Mary Pope Osborne

Cover of How You Were Born

How You Were Born

Mary Pope Osborne

Level 2

Gets All Dried Up

Mary Pope Osborne

Cover of Gets All Dried Up

Gets All Dried Up

Mary Pope Osborne

Level 4-5

Return to Ithaca / by Mary Pope Osborne ; with artwork by Troy Howell.

Mary Pope Osborne

Cover of Return to Ithaca / by Mary Pope Osborne ; with artwork by Troy Howell.

Return to Ithaca / by Mary Pope Osborne ; with artwork by Troy Howell.

Mary Pope Osborne

Level 4-5

Sweet Dreams, Clown-Arounds!

Mary Pope Osborne

Cover of Sweet Dreams, Clown-Arounds!

Sweet Dreams, Clown-Arounds!

Mary Pope Osborne

Level 1-2

Dragons and mythical creatures

Mary Pope Osborne

Cover of Dragons and mythical creatures

Dragons and mythical creatures

Mary Pope Osborne

Level 5-6 Gentle

World War II

Mary Pope Osborne

Cover of World War II

World War II

Mary Pope Osborne

Level 6-7 Moderate

Warriors : A nonfiction companion to Magic Tree House #31

Mary Pope Osborne

Cover of Warriors : A nonfiction companion to Magic Tree House #31

Warriors : A nonfiction companion to Magic Tree House #31

Mary Pope Osborne

Level 5-6 Gentle

A Big Day for Baseball (Magic Tree House)

Mary Pope Osborne

Cover of A Big Day for Baseball (Magic Tree House)

A Big Day for Baseball (Magic Tree House)

Mary Pope Osborne

Level 3-4 Gentle

Hurricane heroes in Texas

Mary Pope Osborne

Cover of Hurricane heroes in Texas

Hurricane heroes in Texas

Mary Pope Osborne

Level 3-4 Mild

El verano de la serpiente marina

Mary Pope Osborne

Cover of El verano de la serpiente marina

El verano de la serpiente marina

Mary Pope Osborne

Level 3-4

Carnaval a media luz

Mary Pope Osborne

Cover of Carnaval a media luz

Carnaval a media luz

Mary Pope Osborne

Level 3-4

La estación de las tormentas de arena

Mary Pope Osborne

Cover of La estación de las tormentas de arena

La estación de las tormentas de arena

Mary Pope Osborne

Level 3-4

La noche de los nuevos magos

Mary Pope Osborne

Cover of La noche de los nuevos magos

La noche de los nuevos magos

Mary Pope Osborne

Level 3-4

Lunes con un Genio Loco

Mary Pope Osborne

Cover of Lunes con un Genio Loco

Lunes con un Genio Loco

Mary Pope Osborne

Level 3-4

Día Negro en el Fondo Del Mar

Mary Pope Osborne

Cover of Día Negro en el Fondo Del Mar

Día Negro en el Fondo Del Mar

Mary Pope Osborne

Level 3-4

El regalo del pingüno emperador Spanish Edition)

Mary Pope Osborne

Cover of El regalo del pingüno emperador Spanish Edition)

El regalo del pingüno emperador Spanish Edition)

Mary Pope Osborne

Level 3-4

Buena noche para fantasmas

Mary Pope Osborne

Cover of Buena noche para fantasmas

Buena noche para fantasmas

Mary Pope Osborne

Level 3-4

Vacaciones Al Pie De Un Volcan/ Vacation Under the Volcano (La Casa Del Arbol Magic Tree House)

Mary Pope Osborne

Cover of Vacaciones Al Pie De Un Volcan/ Vacation Under the Volcano (La Casa Del Arbol Magic Tree House)

Vacaciones Al Pie De Un Volcan/ Vacation Under the Volcano (La Casa Del Arbol Magic Tree House)

Mary Pope Osborne

Level 3-4

El Dia Del Rey Dragon/ the Day of the Dragon King

Mary Pope Osborne

Cover of El Dia Del Rey Dragon/ the Day of the Dragon King

El Dia Del Rey Dragon/ the Day of the Dragon King

Mary Pope Osborne

Level 3-4 Mild

Tonight On The Titanic

Mary Pope Osborne

Cover of Tonight On The Titanic

Tonight On The Titanic

Mary Pope Osborne

Level 3-4

Guerra Revolucionaria En Mircoles

Mary Pope Osborne

Cover of Guerra Revolucionaria En Mircoles

Guerra Revolucionaria En Mircoles

Mary Pope Osborne

Level 3-4

Tornado En Martes

Mary Pope Osborne

Cover of Tornado En Martes

Tornado En Martes

Mary Pope Osborne

Level 3

Miedo escénico en una noche de verano

Mary Pope Osborne

Cover of Miedo escénico en una noche de verano

Miedo escénico en una noche de verano

Mary Pope Osborne

Level 3

Buenos días, gorilas

Mary Pope Osborne

Cover of Buenos días, gorilas

Buenos días, gorilas

Mary Pope Osborne

Level 3-4

Maremoto en Hawái

Mary Pope Osborne

Cover of Maremoto en Hawái

Maremoto en Hawái

Mary Pope Osborne

Level 3-4

Benjamin Franklin

Mary Pope Osborne

Cover of Benjamin Franklin

Benjamin Franklin

Mary Pope Osborne

Level 5-6 Gentle

Narwhals and Other Whales

Mary Pope Osborne

Cover of Narwhals and Other Whales

Narwhals and Other Whales

Mary Pope Osborne

Level 5-6 Gentle

Llamas and the Andes : A Nonfiction Companion to Magic Tree House #34

Mary Pope Osborne

Cover of Llamas and the Andes : A Nonfiction Companion to Magic Tree House #34

Llamas and the Andes : A Nonfiction Companion to Magic Tree House #34

Mary Pope Osborne

Level 5-6 Gentle

Snow Leopards and Other Wild Cats

Mary Pope Osborne

Cover of Snow Leopards and Other Wild Cats

Snow Leopards and Other Wild Cats

Mary Pope Osborne

Level 5-6

Questions about Mary Pope Osborne's books

What reading level are Mary Pope Osborne's books?
Mary Pope Osborne's rated books range from Grade 2–7, with the typical book at Grade 3. Each title has a separate content intensity score so parents can choose by emotional readiness, not just text difficulty.
Are Mary Pope Osborne's books appropriate for sensitive readers?
46 of Mary Pope Osborne's 49 rated books (94%) are at Gentle or Mild intensity — safe for sensitive readers. 0 (0%) are rated Intense or Very Intense. Average intensity: 1.5/5.
What age are Mary Pope Osborne's books appropriate for?
Mary Pope Osborne's rated books target Ages 5–8 and Ages 9–12. HootRated rates each book on reading level and content intensity — match both dimensions, not just one.