When twins Linus and Ophelia and their friend, Walter, bring Tom Sawyer into the real world, Tom immediately starts trouble but when Ophelia, with whom he has fallen in love, is kidnapped, Tom is determined to save her.

Orphaned fourteen-year-old twins Linus and Ophelia and their friend Walter think they can control the powers of the enchanted attic, but their plans backfire when they bring crazy Captain Ahab from the book world into the real world.

"Kevin Wilson's best book yet--a moving and uproarious novel about a woman who finds meaning in her life when she begins caring for two children with remarkable and disturbing abilities... Lillian and Madison were the unlikeliest of roommates at their elite boarding school: Madison, the daughter of a prominent Atlanta family, being groomed for greatness; Lillian, a scholarship student, plucked out of nowhere based solely on her intellect and athletic...

Devious twins Edgar and Ellen scheme to thwart the mayor's tourism initiative, which, if successful, would destroy the town junkyard--the twins' favorite playground, foraging spot, and home to their beloved carniverous plant, Berenice.

The magical world of Artimé is gone and the Unwanteds are looking to Alex Stowe for answers, but while his twin brother Aaron continues to build his army in Quill, a very dangerous common enemy is revealed.

"After the apocalyptic Omega, a group of orphaned teen boys learn of their dark fate and escape, joining forces with twin girls who have been imprisoned for the 'good of the republic.' In their plight for freedom, these young heroes must find the best in themselves to fight against the worst in their enemies"--

Thirteen-year-old Johnny searches the town after his twin sister Alyssa disappears on her way home from the library one day, and Detective Clyde Hunt, lead cop on the case, watches over Johnny and his mother to keep them safe while the boy and his friend continue their hunt.

In Rainbow Rowell's Fangirl, Cath is a Simon Snow fan. Okay, the whole world is a Simon Snow fan, but for Cath, being a fan is her life-and she's really good at it. She and her twin sister, Wren, ensconced themselves in the Simon Snow series when they were just kids; it's what got them through their mother leaving. Reading. Rereading. Hanging out in Simon Snow forums, writing Simon Snow fan fiction, dressing up like the characters for every movie...

Fifteen-year-old twins John and Ambrose man one of the first submarines in order to transport gunpowder to the patriots and then attempt a prison break to rescue one of their older brothers.

"Seventeen-year-old Ash Larkin finds out her family is involved in a centuries-old saga of love and murder, alchemy and immortality when she follows her mother to an isolated settlement in the cornfields of Kansas"--