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Like the first book in the duology, Replica, Helix is a flip book that contains two narratives in one. Each narrative contains revelations critically important to the other story. The stories can be read separately or in alternating chapters. In either case, the two distinct parts of this astonishing novel combine to produce an unforgettable experience.

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Like its ambitious companion novel, Replica, this far-reaching novel by the powerhouse author of Before I Fall and the Delirium trilogy digs deep into questions of how to be a human being in a world where humanity cannot be taken for granted.

In the world outside of the Haven Institute, Lyra and Caelum are finding it hard to be human-and Lyra, infected at Haven with a terrible disease, finds her symptoms are growing worse. When Caelum leaves without warning, Lyra follows him, seeking a pioneering organization in Philadelphia that might have a cure. But what they uncover there is a shocking connection to their past, even as their future seems in danger of collapsing.

Though Gemma just wants to go back to her normal life after Haven, she soon learns that her powerful father has other plans for the replicas-unless she and her boyfriend Pete can stop him. But they soon learn that they aren´t safe either. The Haven Institute wasn´t destroyed after all, and now Gemma is the one behind the walls.

Bestselling author Lauren Oliver brings the Replica duology to a shocking close in Ringer, but like both Gemma and Lyra, you won´t be able to leave the world of Haven behind after you´ve turned the last page.

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"The third-person narration plunges along at a positively addicting pace. Speculative fiction at its core, Oliver´s novel is also a reflection on the nature of humanity as explored through the dualities of life/death, autonomy/ownership, truth/lies, and good/evil." Kirkus Reviews

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Lauren Oliver is the cofounder of media and content development company Glasstown Entertainment, where she serves as the president of production. She is also the New York Times bestselling author of the YA novels Replica, Vanishing Girls, Panic, and the Delirium trilogy: Delirium, Pandemonium, and Requiem, which have been translated into more than thirty languages. The film rights to both Replica and Lauren´s bestselling first novel, Before I Fall, were acquired by AwesomenessTV; Before I Fall has been made into a major motion picture.

Her novels for middle grade readers include The Spindlers, Liesl & Po, and the Curiosity House series, co-written with H. C. Chester. She has written one novel for adults, Rooms.

A graduate of the University of Chicago and NYU´s MFA program, Lauren Oliver divides her time between New York, Connecticut, and a variety of airport lounges. You can visit her online at www.laurenoliverbooks.com.

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