What reading level is Hidden Rock rescue?

Hidden Rock rescue by K. E. Rocha is at a Level 4-5 reading level (Lexile 750L). Recommended for Middle Grades readers (Ages 9-12).

What age is Hidden Rock rescue appropriate for?

Hidden Rock rescue is recommended for Ages 9-12. HootRating: 9ME (Moderate — Emotional).

What genre is Hidden Rock rescue?

Hidden Rock rescue is fiction — Bears.

Does Hidden Rock rescue have any content warnings?

Hidden Rock rescue has a HootRating of 9ME (Moderate — Emotional). No specific content flags noted. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is Hidden Rock rescue?

Hidden Rock rescue by K. E. Rocha is 206 pages.

Reviewed by HootRated editorial · Last updated September 7, 2026

Hidden Rock rescue

K. E. Rocha

Hidden Rock rescue

Age Rating, Reading Level & Content Guide

by K. E. Rocha

Reading Level 4-5 9ME Ages 9-12 Matched

The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content has moderate intensity with some emotionally heavy themes.

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About This Book

Spencer Plain is the bravest kid you'll ever meet—because he’s about to sneak into a secret zoo where rare animals are trapped! When the rescue plan falls apart, it’s up to Spencer and his clever friend Aldo to outsmart the bad guys and save the day. If they fail, everything they care about could be lost forever.

Themes

Adventure Friendship FamilyHuman-animal communicationJuvenile fiction

Quick Assessment

Hidden Rock Rescue is an engaging middle-grade adventure about Spencer Plain, whose parents are held captive by an illegal animal trading ring. The story explores themes of courage, teamwork, and the bond between humans and animals, suitable for readers aged 9-12. Parents should note the plot includes tense rescue scenes and mild peril but no graphic content.

Why we rated Hidden Rock rescue 9ME

Hidden Rock rescue is written at a Level 4-5 reading level with a Lexile measure of 750L across 206 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Hidden Rock rescue works for readers up to grade 6.5.

We rate Hidden Rock rescue as 9ME ("Moderate — Emotional") because the content sits in the "Moderate" range — moderate conflict that may involve loss, scary scenes, or interpersonal stakes. The strongest signals come from emotional weight, physical peril — these are the dimensions parents should evaluate against their reader's tolerance.

No specific content flags were raised by community reviewers, which is consistent with the moderate intensity score.

Thematically, Hidden Rock rescue explores adventure, friendship, family, human-animal communication, and juvenile fiction — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
✓ Patient readers who enjoy slower, character-driven stories.
✓ Kids drawn to stories about adventure, friendship, family.

Maybe not for

! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.
! Reluctant readers who need a fast hook — the pacing here rewards patience.