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Mr. Lemoncello's Fantabulous Finale by Chris Grabenstein
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Mr. Lemoncello's Fantabulous Finale

By Chris Grabenstein

By Chris Grabenstein

By Chris Grabenstein

By Chris Grabenstein

By Chris Grabenstein

By Chris Grabenstein

By Chris Grabenstein

By Chris Grabenstein

By Chris Grabenstein
Read by Kirby Heyborne and Chris Grabenstein

By Chris Grabenstein
Read by Kirby Heyborne and Chris Grabenstein

Best Seller

Part of Mr. Lemoncello's Library

Part of Mr. Lemoncello's Library

Part of Mr. Lemoncello's Library

Part of Mr. Lemoncello's Library

Part of Mr. Lemoncello's Library

Paperback $8.99

Sep 16, 2025 | ISBN 9780593707975 | Middle Grade (8-12)

Hardcover $17.99

Nov 05, 2024 | ISBN 9780593707944 | Middle Grade (8-12)

Hardcover $20.99

Nov 05, 2024 | ISBN 9780593707951 | Middle Grade (8-12)

Ebook $10.99

Nov 05, 2024 | ISBN 9780593707968 | Middle Grade (8-12)

Audiobook Download $18.00

Nov 05, 2024 | 379 Minutes | Middle Grade (8-12)

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    Mr. Lemoncello's Fantabulous Finale by Chris Grabenstein
    Paperback $8.99
    Sep 16, 2025 | ISBN 9780593707975

    Preorder from:

    See All Formats (4) +
    • $8.99

      Sep 16, 2025 | ISBN 9780593707975 | Middle Grade (8-12)

      Preorder from:

    • $17.99

      Nov 05, 2024 | ISBN 9780593707944 | Middle Grade (8-12)

      Buy from Other Retailers:

    • $20.99

      Nov 05, 2024 | ISBN 9780593707951 | Middle Grade (8-12)

      Buy from Other Retailers:

    • Nov 05, 2024 | ISBN 9780593707968 | Middle Grade (8-12)

      Buy from Other Retailers:

    • Nov 05, 2024 | ISBN 9780593915219 | Middle Grade (8-12)

      379 Minutes

      Buy from Other Retailers:

    Buy the Audiobook Download:

    About Mr. Lemoncello’s Fantabulous Finale

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

    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 coming soon 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 Mr. Lemoncello’s Fantabulous Finale

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

    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 coming soon 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 Mr. Lemoncello’s Fantabulous Finale

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

    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 coming soon 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 Mr. Lemoncello’s Fantabulous Finale

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

    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 coming soon 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 Mr. Lemoncello’s Fantabulous Finale

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

    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 coming soon 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

    Read An Excerpt

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    Read An Excerpt

    Read An Excerpt

    Read An Excerpt

    Listen to a sample from Mr. Lemoncello’s Fantabulous Finale

    Also by Chris Grabenstein

    Ms. Pennypickle's Puzzle Quest
    Mr. Lemoncello's Library: Books 4-6
    The Smartest Kid in the Universe: Books 1-3
    Evil Genius: The Smartest Kid in the Universe, Book 3
    Escape from Mr. Lemoncello's Library: The Graphic Novel
    See all books by Chris Grabenstein

    Also by Chris Grabenstein

    Ms. Pennypickle's Puzzle Quest
    Mr. Lemoncello's Library: Books 4-6
    The Smartest Kid in the Universe: Books 1-3
    Evil Genius: The Smartest Kid in the Universe, Book 3
    Escape from Mr. Lemoncello's Library: The Graphic Novel
    See all books by Chris Grabenstein

    Also by Chris Grabenstein

    Ms. Pennypickle's Puzzle Quest
    Mr. Lemoncello's Library: Books 4-6
    The Smartest Kid in the Universe: Books 1-3
    Evil Genius: The Smartest Kid in the Universe, Book 3
    Escape from Mr. Lemoncello's Library: The Graphic Novel
    See all books by Chris Grabenstein

    Also by Chris Grabenstein

    Ms. Pennypickle's Puzzle Quest
    Mr. Lemoncello's Library: Books 4-6
    The Smartest Kid in the Universe: Books 1-3
    Evil Genius: The Smartest Kid in the Universe, Book 3
    Escape from Mr. Lemoncello's Library: The Graphic Novel
    See all books by Chris Grabenstein

    Also by Chris Grabenstein

    Ms. Pennypickle's Puzzle Quest
    Mr. Lemoncello's Library: Books 4-6
    The Smartest Kid in the Universe: Books 1-3
    Evil Genius: The Smartest Kid in the Universe, Book 3
    Escape from Mr. Lemoncello's Library: The Graphic Novel
    See all books by Chris Grabenstein

    About Chris Grabenstein

    When I talk to kids about my new book THE ISLAND OF DR. LIBRIS, I torture them with a tale of electronics deprivation.

         “My main character, Billy Gillfoyle,” I say, “is spending the summer in a cabin on a lake. 

    … More about Chris Grabenstein

    About Chris Grabenstein

    When I talk to kids about my new book THE ISLAND OF DR. LIBRIS, I torture them with a tale of electronics deprivation.

         “My main character, Billy Gillfoyle,” I say, “is spending the summer in a cabin on a lake. 

    … More about Chris Grabenstein

    About Chris Grabenstein

    When I talk to kids about my new book THE ISLAND OF DR. LIBRIS, I torture them with a tale of electronics deprivation.

         “My main character, Billy Gillfoyle,” I say, “is spending the summer in a cabin on a lake. 

    … More about Chris Grabenstein

    About Chris Grabenstein

    When I talk to kids about my new book THE ISLAND OF DR. LIBRIS, I torture them with a tale of electronics deprivation.

         “My main character, Billy Gillfoyle,” I say, “is spending the summer in a cabin on a lake. 

    … More about Chris Grabenstein

    About Chris Grabenstein

    When I talk to kids about my new book THE ISLAND OF DR. LIBRIS, I torture them with a tale of electronics deprivation.

         “My main character, Billy Gillfoyle,” I say, “is spending the summer in a cabin on a lake. 

    … More about Chris Grabenstein

    Product Details

    Category: Children’s Middle Grade Mystery | Children’s Middle Grade Action & Adventure

    Paperback | $8.99
    Published by Yearling
    Sep 16, 2025 | 304 Pages | 5-3/16 x 7-5/8 | Middle Grade (8-12) | ISBN 9780593707975

    Category: Children’s Middle Grade Mystery | Children’s Middle Grade Action & Adventure

    Hardcover | $17.99
    Published by Random House Books for Young Readers
    Nov 05, 2024 | 304 Pages | 5-1/2 x 8-1/4 | Middle Grade (8-12) | ISBN 9780593707944

    Category: Children’s Middle Grade Mystery | Children’s Middle Grade Action & Adventure

    Hardcover | $20.99
    Published by Random House Books for Young Readers
    Nov 05, 2024 | 304 Pages | 5-1/2 x 8-1/4 | Middle Grade (8-12) | ISBN 9780593707951

    Category: Children’s Middle Grade Mystery | Children’s Middle Grade Action & Adventure

    Ebook | $10.99
    Published by Random House Books for Young Readers
    Nov 05, 2024 | 304 Pages | Middle Grade (8-12) | ISBN 9780593707968

    Category: Children’s Middle Grade Mystery | Children’s Middle Grade Action & Adventure | Audiobooks

    Audiobook Download | $18.00
    Published by Listening Library
    Nov 05, 2024 | 379 Minutes | Middle Grade (8-12) | ISBN 9780593915219

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