THE PREQUEL TO THE NEW YORK TIMES BESTSELLING SERIES WITH MORE THAN TWO MILLION COPIES SOLD!

Discover the origins of what James Patterson calls “the coolest library in the world.” Follow along and solve the clues in this interactive adventure to reveal how Mr. Lemoncello became everyone’s favorite game maker! From the co-author of Murdle Jr.: Sleuths on the Loose…

“An ‘awesometastic’ lead-in.”—Booklist, starred review

Go back to the start and meet thirteen-year-old, puzzle-obsessed Luigi Lemoncello!

Luigi has a knack for games and puzzles. But sometimes it feels like the cards are stacked against him. Until a carnival arrives in town and Luigi gets the chance of a lifetime—the opportunity to work for the world-famous Professor Marvelmous, a dazzling, banana-hat-wearing barker who puts the show in showman! When the carnival closes, Professor Marvelmous leaves behind a mysterious puzzle box along with a clue. A clue that will lead Luigi and his friends on a fantastical treasure hunt to a prize beyond anything they could imagine—if they can find it!

Can Luigi crack the codes and unlock the box’s secrets? Will there be puzzles? Of course! Balloons? You bet! Will it be fun? Hello! It’s a Lemon-cello! BONUS! Can you solve the hidden puzzle inside?!

The Lemoncello books are laugh-out-loud, puzzle-packed must-reads for classrooms and homes across America. Look for the whole series!
Mr. Lemoncello’s Very First Game (the prequel)
Escape from Mr. Lemoncello’s Library (also available as a graphic novel)
Mr. Lemoncello’s Library Olympics (also available as a graphic novel)
Mr. Lemoncello’s Great Library Race
Mr. Lemoncello’s All-Star Breakout Game
Mr. Lemoncello and the Titanium Ticket
Mr. Lemoncello’s Fantabulous Finale

About the Author

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.

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