Chris Grabenstein

Comedian Jamie Grimm, accompanied by Uncle Frank, New Aunt Flora, and friends, circles the globe as host of regional competitions, then competes, himself, in the Planet's Funniest Kid Worldwide contest.

When a set of priceless paintings by Leonardo da Vinci and Rembrandt go missing in Russia, the Kidd siblings head to St. Petersburg and the wild Arctic tundra to find the bad guys and locate the treasure.

Two bullied underdogs finally win the day when their troubles inspire a hit TV show.

Twins Bick and Beck Kidd and their family of professional treasure hunters race against mercenaries, rival treasure hunters, and a lumber baron through the jungles and mountains of Peru in search of Paititi, the legendary lost Inca city of gold, in hope of conserving the archaeological treasure and preventing deforestation of the rain forest.

In the #1 New York Times bestselling book, class clown Jacky Hart discovers she's a triple threat onstage—but will she have a chance to shine?    Jacky Hart has found a hidden talent in the performing arts, and she's a triple threat onstage! She wants nothing more than to act and sing all summer — but her parents have other plans for her. Jacky reluctantly signs up for a summer job in her resort town of Seaside...

Max Einstein and a group of international geniuses use their creativity and curiosity to help solve some of the world's toughest problems with science.

"New York Times bestselling author Chris Grabenstein and his all-star cast of contributing authors team up for Super Puzzletastic Mysteries, a group of interactive short stories that invite the reader to solve the mystery themselves"--

Taking on her biggest challenge yet--preventing climate change from destroying the Earth--Max Einstein is pitted against a new evil group that would rather let the whole world crumble than allow her to save the planet.

Adapted from James Patterson's #1 bestselling story, this hilarious and heartwarming graphic novel introduces Jacky Ha-Ha, a class clown who makes people laugh with her so they can't laugh at her! With her irresistible urge to tell a joke in every situation--even when it's a bad idea--Jacky Ha-Ha loves to make people laugh. And cracking wise helps distract her from thinking about not-so-funny things in her life, like her mom serving in a dangerous,...

Rendered a ghost by a bicycle accident, young Finn McAllister teams up with fellow spirit Isabella Rojas to commit invisible pranks on the living, before discovering that they cannot move on to the afterlife.