Welcome back to what James Patterson calls "the coolest library in the world." Follow along and solve the clues in this interactive adventure to see if you have what it takes to be the new owner of Mr. Lemoncello's epic gaming empire! From the co-author of Murdle Jr.: Sleuths on the Loose...

"A worthy successor to the original madman puzzle-master himself, Willy Wonka." --Booklist, starred review of Escape from Mr. Lemoncello's Library

Mr. Lemoncello has invited thirteen lucky thirteen-year-olds--including his biggest fan, Kyle Keeley--to compete in one last fantabulous challenge. This time everything is on the line... literally! The winner of these games will become the new owner of Mr. Lemoncello's entire empire. But uh-oh--someone is trying to destroy Mr. Lemoncello and all he stands for: imagination, games, books, and knowledge. Can Kyle stop them and make his dreams come true?

Get ready for a whirlwind adventure from the lions of the New York City Public Library to the Choose Your Own Thrill-Venture Roller Coaster inside the brand-new Lemoncelloland amusement park, filled with codes, clues, and surprise cameos. So sit back and relax... you are on your way to Lemoncelloland!

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