Colorado Parks & Wildlife Research Library

"Third-grader Aven Green has been solving mysteries for a whole month, cracking such cases as The Mystery of the Cranky Mom. But can this perceptive detective solve two cases at the same time? First her teacher's lunch bag disappears. Then Aven's great-grandma's dog goes missing. Fortunately, since Aven was born without arms, all the "arm" cells went to her super-powered brain instead. (That's her theory.)"--

A bear almost gives up his search for his missing hat until he remembers something important.

When her best toy mysteriously disappears, Olivia the feisty pig is determined to find out who is responsible.

A tiny minnow wearing a pale blue bowler hat has a thing or two up his fins in this underwater light-on-dark chase scene.

Biscuit the dog helps reunite a lost teddy bear with its owner.

While trying his best to help a penguin that has shown up at his door, a boy journeys all the way to the South Pole, only to realize that the penguin was never lost.

Jack loves his childhood toy, Dur Pig. DP has always been there for him, through good and bad. Until one Christmas Eve something terrible happens--DP is lost. But Christmas Eve is a night for miracles and lost causes, a night when all things can come to life, even toys. And Jack’s newest toy--the Christmas Pig (DP’s replacement)--has a daring plan: Together they’ll embark on a magical journey to seek something lost, and to save the best friend...

Anthony Peardew is the Keeper of Lost Things. Once a celebrated author of short stories, now in his twilight years, Anthony has sought consolation from the long-ago loss of his fiancee by lovingly rescuing lost objects--the things others have dropped, misplaced, or accidently left behind. Realizing that he's running out of time, he leaves his beautiful house and all the collected treasures to his unsuspecting assistant, Laura, the one person he trusts...

After a class trip to a floating zoo where animals are mistreated and Savannah's missing pet monkey is found in a cage, Long Island sixth-grader Griffin Bing and his band of misfits plan a rescue. Book #2

A tooth goes missing while Pete the Cat is helping the Tooth Fairy, and he must find it before it's too late.