When time goes backwards, granting six-year-old Otto his wish that his attention-stealing baby sister was never born, it keeps going backwards, and Otto finds himself getting younger and younger.

In 1940, when Delphi Keep is taken over by the Royal Navy as a communications outpost, Ian, Theo, and Carl dread being evacuated to the earl's winter residence where they will no longer be protected, but even more concerned about deciphering the third prophecy and identifying the Secret Keeper.

From the Sydney, Australia home of a grandmother she believes is a witch, fifteen-year-old Reason Cansino is magically transported to New York City, where she discovers that friends and foes can be hard to distinguish

The battle between the statues and gargoyles of London rages on--and 12-year-old George Chapman and his friend Edie are caught in the middle. With the Walker intent on forcing his evil designs on the city and the world, George realizes that his destiny is inextricably tied to the Walker's destruction

"When Jake and Marisol return unexpectedly to the World Between Blinks, they find that nothing is as they left it ... With rebels like Amelia Earhart and Queen Nefertiti facing the threat of their hourglasses of memories being flipped, Jake and Marisol ... must locate a mysterious item known as the Rocket. This unknown object is their only chance to defeat the Administrator-before everything that makes the World wonderful is lost"--

"An old magic resurfaces in twelve-year-old Olive's house, and in order to save herself, those she loves, and all of Elsewhere, she must uncover the complex history of this eerie, painted world, its magical origins, and its creator"--

Ten-year-old Kara follows mysterious tracks in the snow that lead her across time and space from modern-day Sweden to 1942 Germany where two siblings are hiding from the Nazis.

Jack and Annie travel in their magic treehouse to the year 1621, where they celebrate the first Thanksgiving with the Pilgrims and Wampanoag Indians in the New Plymouth Colony.

"Jack and Annie are whisked back in time by the magic tree house to meet Benjamin Franklin in Old Philadelphia"--

Accompanied by her loyal friend Germ, twelve-year-old Rosie Oaks travels through time and space in a magical whale as she sets out to save her brother and fulfill her destiny to find and vanquish the remaining Thirteen Witches.