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History's Greatest Warriors (Capstone Press); Velocity Books in Order

2 books by Jessica Sarah Gunderson. Reading level: Grades 5.2–5.9. Middle Grades (Ages 9–12).

Series books grow with readers — but that's also the trap. Most series start at one reading level and one content intensity and drift upward over the course of the run. History's Greatest Warriors (Capstone Press); Velocity (2 books by Jessica Sarah Gunderson) lands at reading level Grades 5.2–5.9, with average content intensity 1/5. Intensity stays consistent across the series — a kid who can handle the first book can generally handle the rest.

The reading-order table below lists every book with per-volume reading level and intensity badges so you can spot any escalation before it catches your reader off guard. For a deeper dive into how we score text difficulty vs. emotional weight separately — and why series readers especially benefit from that split — see our methodology page.

2
Books
Grades 5.2–5.9
Reading Level
1/5
Avg. Intensity
MG
Middle Grades

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

1
2
First book Latest book

History's Greatest Warriors (Capstone Press); Velocity Reading Order

# Title Reading Level Content
1 Ninjas
Jessica Sarah Gunderson
Level 5-6 Gentle
2 Vikings
Sean McCollum
Level 5-6 Gentle

Questions about the History's Greatest Warriors (Capstone Press); Velocity series

What reading level is the History's Greatest Warriors (Capstone Press); Velocity series?
The History's Greatest Warriors (Capstone Press); Velocity series by Jessica Sarah Gunderson is at a Grades 5.2–5.9 reading level (average Grade 5.6). Intended for Middle Grades (Ages 9–12). There are 2 books in the series.
What order should I read the History's Greatest Warriors (Capstone Press); Velocity books?
The reading-order table above lists all 2 books with per-volume reading level and intensity ratings. Start with book 1 and read in publication order unless the table indicates a different recommended order for newer readers.
What age is the History's Greatest Warriors (Capstone Press); Velocity series appropriate for?
The History's Greatest Warriors (Capstone Press); Velocity series is recommended for Middle Grades (Ages 9–12). The average content intensity is 1/5. Check the intensity trajectory above to see whether content gets heavier across the series — if it does, sensitive readers may want to stop earlier in the run.