Chris Grabenstein is the bestselling author of the Mr.
Lemoncello, Smartest Kid in the Universe, Dog Squad, and Welcome to
Wonderland series, as well as the coauthor of numerous page-turners
with James Patterson and of Shine!, cowritten with Chris’s wife,
J.J. Grabenstein.
Douglas Holgate is the illustrator of the bestselling Last
Kids on Earth graphic novels and has illustrated books and comics
for HarperCollins, Hachette, Image, Dynamite, Abrams, and more.
PRAISE FOR THE SERIES:
A New York Times bestselling series
44 state award lists and counting
"Discover the coolest library in the world." —James Patterson
"Lots of action and quirky humor." —The Washington Post
★ "A worthy successor to the original madman puzzle-master himself,
Willy Wonka." —Booklist, starred review
★ "A winner for readers and game-players alike." —Kirkus Reviews,
starred review
★ "A fun-filled, suspenseful intellectual puzzle." —Shelf
Awareness, starred review
"Will have readers racing to pick up the next volume." —School
Library Journal
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