As eighteen-year-old Marguerite struggles to get to the heart of the corrupt company that almost killed her father, she tries to save the boy she loves, whose soul is scattered in various dimensions.

The fate of the multiverse rests in Marguerite's hands in the final installment of the Firebird trilogy by New York Times bestselling author Claudia Gray. Ever since she used the Firebird, her parent's invention, to cross through alternate dimensions, Marguerite has been at the center of a cross-dimensional feud. Now she has learned that the evil Triad Corporation plans to destroy hundreds of universes, using their ultimate weapon: another dimension's...

In a future Australia, the saucy eighteen-year-old daughter of a famous newscaster and a sperm donor teams up with a hermaphrodite from the planet Choria in a time travel adventure that may significantly change both of their lives.

At nineteen, Polly has two sets of sometimes overlapping, sometimes conflicting memories, the real-life ones of school days and her parents' divorce, and the heroic adventure ones that began the day she accidentally gate-crashed a funeral and met the cellist Thomas Lynn.

Teenaged soldier Noemi and an enemy robot, Abel, who is programmed to obey her commands, set out on an interstellar quest to save her home planet, Earth colony Genesis.

Ali and her ex-boyfriend, Nico, both eighteen, rehash their ill-fated romance during a road trip to sell the 1968 Firebird convertible she just inherited from her estranged father.

In a kingdom called the Dells, Fire is the last human-shaped monster, with unimaginable beauty and the ability to control the minds of those around her, but even with these gifts she cannot escape the strife that overcomes her world.

The infant princess Briar Rose is cursed on her name day by Pernicia, an evil fairy, and then whisked away by a young fairy to be raised in a remote part of a magical country, unaware of her real identity and hidden from Pernicia's vengeful powers.