"George and Harold have been turned into evil zombie nerds doomed to roam a devastated, postapocalyptic planet for all eternity! Unfortunately, the boys can't count on Captain Underpants for help because Tippy Tinkletrousers and his time-traveling hijinks prevented George and Harold from creating him in the first place! With Tippy having changed the course of human history forever, George and Harold will have to figure out a way to change it back!"...

Pulled through a glass that brings him back in time, Septimus Heap becomes the apprentice of an alchemist.

Publisher Annotation: Ever since thirteen-year-old Corey Fletcher found out that he's the world's first "throwback," with the power to not only visit history, but change it, he's been spending as much time in the past as possible. Whenever his friends get in trouble or his family needs help, all Corey has to do is zip back in time a few days and he can fix all their problems. Corey loves using his skills for good-and making himself look great is a...

When, in 1931, there is a breach between this world and the Archipelago of Dreams, John and Jack, two of the Caretakers of the Imaginarium Geographica, must race through history using a time travel device left by Jules Verne, and discover the identity ofthe Cartographer.

Max is back with a thrilling new adventure that involves time travel, creepy bad guys, killer drones, and a shocking mystery about her past that she will stop at nothing to solve! Under constant danger of being kidnapped by the shadowy Corporation, Max is on the run from New York to London and beyond. But soon the call comes for the Change Maker kids' next mission: make sure no kid ever goes hungry again! If anyone can tackle a problem this big, Max...

"It's up to Sarah Robinson to save her shipwrecked family from a time-traveling "curator" of souls and a treasure-hunting criminal in Book 3 of the Shipwreck Island series"--

Twelve-year-old David and his family search for their kidnapped mother in the many different time period portals of their home, but when a stranger appears and tries to force them to sell the house, their desperation reaches new heights.

When danger lurks in the deserts of Baghdad, which has become a center of learning populated by scholars, merchants, and explorers, Dak, Sera, and Riq must act fast to save the world's greatest library from utter destruction.