Ever since she used the Firebird, her parents' invention, to cross into alternate dimensions, Marguerite has caught the attention of enemies who will do anything to force her into helping them dominate the multiverse -- even hurting the people she loves. She resists until her boyfriend, Paul, is attacked and his consciousness scattered across multiple dimensions. Marguerite has no choice but to search for each splinter of Paul's soul. The hunt sends...

When Luke investigates an eerie blue glow in the woods behind his house, he doesn't know what he'll find there. But a scientist, a robot Abraham Lincoln riding a friendly dinosaur, and a sassy ghost were the last things he could have imagined stumbling upon. Now as Luke and his new companions are pursued by a bickering trio of bumbling henchmen after the strange device locked to his arm, he's forced on a crazy, headlong adventure in a parallel dimension!...

After returning the missing children from history to their original time periods, thirteen-year-old Jonah must save time itself when aviator Charles Lindbergh mysteriously appears and kidnaps Jonah's sister.

"Misfit twelve-year-old Sam Miracles life is made up of dreams, dreams where hes a courageous, legendary hero instead of a foster kid with two bad arms that can barely move. Sometimes these dreams feel so real, they seem like forgotten memories. And sometimes they make him believe that his arms might come alive again. But Sam is about to discover that the world he knows and the world he imagines are separated by only one thing: time. And that separation...

Artemis's mother has contracted a deadly disease -- and the only cure lies in the brain fluid of African lemurs. Unfortunately, Artemis himself was responsible for making the lemurs extinct five years ago. Now he must enlist the aid of his fairy friends to travel back in time and save them. Not only that, but he must face his deadliest foe yet...his younger self.

Teenaged criminal mastermind Artemis Fowl must save the underwater fairy metropolis of Atlantis from danger, while battling a psychological affliction known as the Atlantis Complex.

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

"Mia finds out that her regular school will be putting on a play about superheroes. As soon as the casting call goes out, Mia's sure that the main character role was made just for her. Because after all, who better to play the part than a real-life superhero? But when show day comes around and nerves are running high, will Mia be able to take the stage and be herself without revealing her super-secret?"--Publisher marketing