Book.Mystery at the Big Blue House
Written by Janelle Cherrington
Illustrator Tom Brannon
Published 2000
Publisher Simon Spotlight
ISBN 068983393

Mystery at the Big Blue House is a Bear in the Big Blue House storybook.

When Bear pays a visit to the Otter Pond, he gets the first word of strange events happening in and around the Big Blue House. Pip and Pop were playing with sticks, but then they disappeared. When Tutter and Ojo lose items too, they decide to team up as detectives to try and solve the mystery (in Sherlock Holmes hats as well).

This book combines photos of the characters with soft pastel illustrations. The book is adapted from the episode "It's a Mystery to Me."

Mystery at the Big Blue House is included in the compilation book Bear's Storytime Favorites.