reading level of captain underpants

Barbie: Forever Friends - A Reader Collection - (Mattel Reader, Level 1) by Mattel (Paperback)

The Velveteen Rabbit - (Reading Railroad Books) by Margery Williams (Paperback)

Meet Five Super Heroes (Marvel) - (Step Into Reading Collection) by Marvel Press Book Group (Paperback)

I See a Cat - (I Like to Read) by Paul Meisel

Big Dog and Little Dog Going for a Walk/Perrazo Y Perrito Van a Pasear - (My First I Can Read) by Dav Pilkey (Paperback)

Sacagawea (National Geographic Kids Readers, Level 3) - by Kitson Jazynka & National Geographic Kids (Paperback)

Tomie Depaola's the Cloud Book - (Reading Rainbow Books) by Tomie dePaola (Paperback)

DK Super Readers Level 2 Lego DC Batman: Batman Saves the Day!

Fox Has a Problem - (My First I Can Read) by Corey R Tabor

Step Into Reading Set 2 Phonics First Steps Box Set - (Step Into Reading Boxed Set) by Random House (Mixed Media Product)

Agent Alpaca and the Missing Cake - (Ready-To-Read) by Laura Gehl

Would You, Could You Plant a Tree? with Dr. Seuss's Lorax - (Step Into Reading) by Todd Tarpley (Paperback)

Down Comes the Rain - (Let's-Read-And-Find-Out Science 2) by Franklyn M Branley (Paperback)

I Like My Car - (I Like to Read) by Michael Robertson (Paperback)

I Can Read My Illustrated Bible - (I Can Read!) by Zondervan (Hardcover)

Mís Cinco Sentidos - (Let's-Read-And-Find-Out Science 1) by Aliki (Paperback)

Fireflies in the Night - (Let's-Read-And-Find-Out Science 1) by Judy Hawes (Paperback)

The Best Worst Camp Out Ever - (I Like to Read Comics) by Joe Cepeda

Feel the Wind - (Let's-Read-And-Find-Out Science 2) by Arthur Dorros (Paperback)

All Things Lions For Kids - Large Print by Animal Reads (Paperback)

Truth or Lie: Dinosaurs! - (Step Into Reading, Step 3) by Erica S Perl (Paperback)

Jesus Saves the World / Jesús Salva Al Mundo - (I Can Read! / The Beginner's Bible / ¡yo Sé Leer!) by Vida (Paperback)

Arthur and the School Pet - (Step Into Reading, Step 3) by Marc Brown (Paperback)

Disney Mickey and Friends: Treasure Island Read-Along Classics Sound Book - (Mixed Media Product)