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Make a thrilling escape from a medieval castle using logic, problem-solving, and critical thinking!BEWARE! You've been imprisoned in a medieval cas...

Solve a new puzzle each day—24 total—on a madcap romp through Santa’s headquarters! Billy the Elf works at Santa’s Workshop in the Arctic. A calm, ...

The New York Times bestselling series returns! Zander and Natasha must reverse an evil spell threatening the Number Nine Plaza’s very existence in ...

In the ninth addition to the New York Times bestselling Spy School series, Ben Ripley faces his nemesis, Murray Hill, on the high seas.Thanks to th...

Solve word searches, crack codes, and complete cryptic crosswords to show the CIA that you have what it takes to join Ben and the rest of the crew ...

In the twelfth book in Stuart Gibbs’s New York Times bestselling Spy School series, superspy middle schooler Ben Ripley gets lost on a perilous mis...

In the tenth book in the New York Times bestselling Spy School series, Ben Ripley races against time and across state lines—by car, train, boat, an...

In the eighth book in the New York Times bestselling Spy School series, Ben Ripley faces the Croatoan—a new evil organization that’s so mysterious,...