A hamster, with the help of a canine junkyard dealer and his mouse assistants, builts a hot rod and drives it in a race against some very large dogs.

Follows Hamster and his friend Dog as they prepare for a birthday party.

When second-grader Eugene and his family move to a new neighborhood and he starts at a new school, he has a chance to bring out his superhero alter ego, Captain Awesome, to find the kidnapped class hamster.

"Hamster Holmes and Dr. Watt want to help their friend Ouchy the Porcupine find his missing comb, but have trouble finding clues. Can a comb vanish into thin air?"-- Provided by publisher.

Ellie Ultra has a lot of responsibilities as a superhero. So when the chance to become Hamster Helper for the class's hamster, Squeak, comes around, Ellie isn't so sure she wants to add another thing to her list. But her name is picked and now it's up to Ellie to make sure Squeak is taken care of. All is fine until a mishap in the lab happens and suddenly Ellie's not so big any more-literally! A tousle with the Ultra Shrinker makes Ellie three-inches-tall....

When Harry, the class pet, gets out while at Amelia Bedelia's school break, Amelia and her friends must find him.

Investigating the mysterious footprints of a home invader who their inventor friend believes is trying to steal his ideas, Hamster Holmes and Dr. Watt work to identify the animal responsible for the footprints before it is too late.

"Hamster Holmes and his firefly sidekick, Dr. Watt, ... are enjoying a fair when a friend invites them to race to find a hidden hourglass. Can they solve the word puzzles in time? Time will tell!"-- Provided by publisher. Includes facts and activities.

When their second grade classroom gets a pet hamster, best friends Stanley and Marco disagree about building her an obstacle course or a maze until Stanley uses his flatness to make both ideas work.