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?....

Discover what James Patterson calls “the coolest library in the world” in the New York Times bestselling, award-winning Mr. Lemoncello’s Library series! "A worthy successor to . . . Willy Wonka." —Booklist, starred review LISTEN to the books, PLAY the games, and SOLVE the puzzles in...

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 NEW YORK TIMES BESTSELLING SERIES WITH MORE THAN TWO MILLION COPIES SOLD! On your marks. Get set. Read! From what James Patterson calls “the coolest library in the world” to the race of a lifetime, follow along and solve the clues in this interactive adventure! By the co-author of Murdle...

"Chris Grabenstein just might be the smartest writer for kids in the universe." --James Patterson What if you could learn everything just by eating jellybeans?! Meet the Smartest Kid in the Universe and find out in this fun-packed new series from the Bestselling Author of Escape from Mr...

Meet middle schooler Jake McQuade. Jake became the smartest kid in the universe when he accidentally ate a jarful of ingestible knowledge jelly beans. But what happens when those jelly beans fall into the wrong hands?! Readers who enjoy the action of the Last Kids on Earth books will love this...

Do you love DOGS? Do you love CATS? Do you love ADVENTURE? Then put your paws together for DOG SQUAD, the hilarious, crime-fighting middle-grade series from the #1 New York Times bestselling author of Escape from Mr. Lemoncello's Library! When trouble calls . . . it’s Dog Squad to the rescue!...

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...

The reported theft of a family heirloom sends officers Ceepak and Boyle racing to Sea Haven, New Jersey's Mussel Beach Motel to investigate. There, they run into something much worse than a burglar: the DePinna family reunion....

"Outrageous hijinks and nonstop hilarity--five stars!" --Lincoln Peirce, author of the Big Nate series Dive into summer fun with this hilarious illustrated middle-grade series by Chris Grabenstein, New York Times bestselling author of Escape from Mr. Lemoncello's Library and coauthor with James...

“Outrageous hijinks and nonstop hilarity—five-stars!" —Lincoln Peirce, author of the Big Nate series From the bestselling author of Escape from Mr. Lemoncello’s Library and coauthor with James Patterson of I Funny, House of Robots, and Treasure Hunters, comes the second hilarious...

“Outrageous hijinks and nonstop hilarity—five-stars!” —Lincoln Peirce, author of the Big Nate series From the bestselling author of Escape from Mr. Lemoncello’s Library and co-author with James Patterson of I Funny, House of Robots, and Treasure Hunters, comes a hilarious illustrated...

John Ceepak and Danny Boyle return with the hunt for a long-dormant serial killer who might be ready to strike again....

Danny Boyle gets taken on a wild ride when he and his longtime beach buddies become the unwitting targets of a mad-man's twisted scheme for revenge....

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....

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...

New from the author of Escape from Mr. Lemoncello’s Library and coauthor of the I Funny series with James Patterson! Celebrate the power of imagination with this action-packed New York Times bestseller that shows that sometimes the real story starts after you close the book! What if your...

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...

“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....

Follow the intrepid 12-yeard old Nikki Van Wyck on her fantastic adventure in New York City's Central Park where wildly magical things happen after dark....