In a parallel universe, the classic bad boy falls for the class science geek. One minute Danny was running from the cops, and the next, he jolted awake in an unfamiliar body—his own, but different. Somehow, he’s crossed into a parallel universe. Now his friends are his enemies, his parents are long dead, and studious Eevee is not the mysterious femme fatale he once kissed back home. Then again, this Eevee—a girl who’d rather land an internship at NASA than a date to the prom—may be his only hope of getting home. Eevee tells herself she’s only helping him in the name of quantum physics, but there’s something undeniably fascinating about this boy from another dimension . . . a boy who makes her question who she is, and who she might be in another place and time. And, coming soon, Duplexity, Part II: While You Were Gone flips this story on its head and tells the tale of the alternate Danny and the alternate Eevee, living in Danny’s parallel world. "A debut with great characters and huge nerd appeal." (KIRKUS) "Nichols infuses the story with a smattering of science fiction and science fact, while making a welcome departure from the stereotype of the book-smart outcast trying to fit in." (Publishers Weekly, starred review) "Nichols adeptly simplifies the complex concepts of string theory and parallel universes without condescending to readers. The short chapters develop into a mystery set against a sweet romance that will envelop teens." (School Library Journal) "Think of the intrigue in Cassandra Clare’s Mortal Instruments series, softened by the romance of a Sarah Dessen novel.” (VOYA) "The perfect blend of sci-fi and swoons, Now That You're Here is like no other book I've read. Riveting, romantic and utterly original, it kept me up late!" —Amie Kaufman, author of These Broken Stars