The fifteen-year-old Murry twins, Sandy and Dennys, are accidentally sent back to a strange Biblical time period, in which mythical beasts roam the desert and a man named Noah is building a boat in preparation for a great flood.

Eleven-year-old Miri Gill feels left out in her family, which has two sets of twins and her, until she travels back in time to 1935 and discovers Molly, her own lost twin, and brings her back to the present day.

Bert's eyes went to the labyrinth which he was so eager to finish. His heart gave a leap, and he stopped still. Over the top of the hedge near the entrance, he could see the head of an animal moving. "It's a huge, brown bear!" Bert thought wildly. The Bobbsey Twins -- Bert and Nan, Freddie and Flossie -- have won millions of fans since their first adventure. Now Grosset & Dunlap is proud to reissue the classic editions of these mysteries.

Connor, who was rescued by pirates after his ship was wrecked, believes his twin sister, Grace, was abducted by the Vampirates and is determined to find her.

While armies of the Shadowrealms gather and Machiavelli goes to Alcatraz to kill Perenelle Flamel, fifteen-year-old twins Sophie and Josh Newman accompany the Alchemist to England to find someone who can teach them Water Magic.

Ten-year-old twins Jimmy and Stella start a campaign to save their dying small town (population 49) by restoring the amazing hippomobile, an old-fashioned vehicle made out of a horse wagon.

While Connor faces trouble in the form of an obnoxious new crewmate, Grace, his twin sister, seeks out a vampirate guru who might be able to heal their dear friend Lorcan's blindness.

A rival ship of Vampirates creates unwanted competition on the seas and Captain Li goes on the hunt with Connor Tempest; and meanwhile, Connor's twin sister Grace spends some valuable time with their mother and learns their family's shocking history.

Thirteen-year-old fraternal twins Dallas and Florida have grown up in a terrible orphanage, but their lives change forever when an eccentric but sweet older couple invites them each on an adventure, beginning in an almost magical place called Ruby Holler.

Twelve-year-old twins Ashley and Ryan are tested to the extreme when faced with a powerful avalanche while skiing in Wyoming's Grand Teton mountains. Includes survival tips from the National Avalanche Center and U.S. Forest Service.