What reading level is Monster Blood 4?

Monster Blood 4 by R. L. Stine is at a Level 3-4 reading level. Recommended for Middle Grades readers (Ages 9-12).

What age is Monster Blood 4 appropriate for?

Monster Blood 4 is recommended for Ages 9-12. HootRating: 8LP (Light — Physical). Content flags: Mild Peril, Fantasy Violence.

What genre is Monster Blood 4?

Monster Blood 4 is fiction — Juvenile Fiction. Part of the Goosebumps series.

Does Monster Blood 4 have any content warnings?

Monster Blood 4 has a HootRating of 8LP (Light — Physical). Content flags include: Mild Peril, Fantasy Violence. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is Monster Blood 4?

Monster Blood 4 by R. L. Stine is 118 pages (approximately 18,918 words).

Reviewed by HootRated editorial · Last updated May 18, 2026

Monster Blood 4

R. L. Stine

Monster Blood 4

Age Rating, Reading Level & Content Guide

by R. L. Stine

Goosebumps

Reading Level 3-4 8LP Ages 9-12 Matched Page-Turner

The text is written at a 3rd grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.

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About This Book

Evan faces a sticky situation when a mysterious blue slime escapes from a can of Monster Blood, turning his world into a gooey adventure full of surprises. As the slime spreads, Evan must find a way to stop the creepy chaos before it takes over everything. Get ready for a spooky and slimy ride that will keep you on your toes!

Themes

Adventure Fantasy World-Building Humor

Quick Assessment

This is a Level 3-4 book with mild content intensity. Content themes include mild peril, fantasy violence. Written for readers ages 9-12.

Why we rated Monster Blood 4 8LP

Monster Blood 4 is written at a Level 3-4 reading level across 118 pages (approximately 18,918 words). Strong independent readers around grade 4.3 can typically handle this book on their own; with parent or teacher support, Monster Blood 4 works for readers up to grade 5.3.

Read aloud, Monster Blood 4 runs about 2.1 hours — long enough to span several bedtime sessions.

We rate Monster Blood 4 as 8LP ("Light — Physical") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.

Specific content flags noted by reviewers: Mild Peril, Fantasy Violence.

Thematically, Monster Blood 4 explores adventure, fantasy world-building, and humor — 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.
✓ Reluctant readers who need fast-paced, hook-heavy stories to stay engaged.
✓ Kids drawn to stories about adventure, fantasy world-building, humor.
✓ Readers who fall hard for one book and want a long series to live in — there are 79 more books in the Goosebumps series.