Chris Grabenstein

What do you get when you add up one middle school bully, two bank robbers, 57 puppy-mill dogs, 4,000 missing dollars, and five daring troublemakers led by the incomparable Riley Mack?....

THE NEW YORK TIMES BESTSELLING SERIES WITH MORE THAN TWO MILLION COPIES SOLD! Discover what James Patterson calls “the coolest library in the world.” Follow along and solve the clues in this interactive adventure featuring Mr. Lemoncello’s first-ever Library Olympics! From the co-author of...

Discover what James Patterson calls “the coolest library in the world” in the New York Times bestselling, award-winning Mr. Lemoncello’s Library series!

Discover what James Patterson calls “the coolest library in the world” in the New York Times bestselling, award-winning Mr. Lemoncello’s Library series!

THE START OF THE NEW YORK TIMES BESTSELLING SERIES WITH MORE THAN TWO MILLION COPIES SOLD! Can you escape from what James Patterson calls “the coolest library in the world”? Follow along and solve the clues in this interactive adventure! From the co-author of Murdle Jr.: Sleuths on the...

Everyone's favorite game maker, Mr. Lemoncello, is testing out his new Fabulous Fact-Finding Frenzy game....

On his 11th birthday, Jackson is nervous middle school where he knows he'll be bullied by older kids, so he makes his wish, "I don't want to grow up!" When his 12th birthday rolls around, he discovers his wish came true: he's still 11, and he’s starting fifth grade (again).

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...

“I didn’t do it!” is something cops hear all the time. But when the plea comes from a close friend who’s fallen on hard times, it’s tougher to ignore, especially for young Officer Danny Boyle....

THE NEW YORK TIMES BESTSELLING SERIES WITH MORE THAN TWO MILLION COPIES SOLD! And we’re live! From what James Patterson calls “the coolest library in the world” to Mr. Lemoncello’s first-ever televised breakout game, follow along and solve the clues in this interactive adventure! By the...

Duke is not your average dog. Along with his crew, he fights crime and goes on claw-biting adventures helping dogs in peril in the hit streaming sensation - Dog Squad! Fred is a pretty average dog. He's scrappy. He's loveable....

A harrowing array of scary stories that all have one thing in common: each either begins or ends with a scream!

Fred, the loveable stray who became the star of the hit streaming sensation, Dog Squad, is back and working on a new show—Cat Crew! But wait a second—there’s something funny about these felines....

Twelve year old Jake's middle school is about to be shut down—unless Jake and his friends can figure out how to save it. When Jake spies a bowl of jellybeans at the hotel where his mom works, he eats them. But those weren't just jellybeans....

THE NEW YORK TIMES BESTSELLING SERIES WITH MORE THAN TWO MILLION COPIES SOLD! James Patterson called it “the coolest library in the world.” Now follow along and solve the clues in this interactive adventure through Mr. Lemoncello’s one-of-a-kind, never-before-seen Gameworks Factory! From...

There isn't much fun in the sun when a billionaire real-estate tycoon is found murdered on the Tilt-a-Whirl at a seedy seaside amusement park in an otherwise quiet summer tourist town....

Eleven-year-old P. T. Wilkie may be the greatest storyteller alive. But he knows one thing for a fact: The Wonderland Motel is the best place a kid could ever live....

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...

What if your favorite characters came to life? Billy’s spending the summer in a lakeside cabin that belongs to the mysterious Dr. Libris. But something strange is going on. Besides the security cameras everywhere, there’s Dr. Libris’s private bookcase....

Join junior detective Jake as she investigates the sinister disappearance of Miss Saffron at Sacred Kidney School. Will she find her teacher before it's too late?