Quantum Coin (#2)

Previous: Fair Coin

Ephraim thought his universe-hopping days were over. He’s done wishing for magic solutions to his problems; his quantum coin has been powerless for almost a year, and he’s settled into a normal life with his girlfriend, Jena. But then an old friend crashes their senior prom: Zoe, Jena’s identical twin from a parallel world. 

Zoe’s timing couldn’t be worse. It turns out that Ephraim’s problems have just begun, and they’re much more complicated than his love life. The multiverse is at stake — and it might just be Ephraim’s fault. 

Ephraim, Jena, and Zoe embark on a mission across multiple worlds to learn what’s going wrong and how to stop it. They will have to draw on every resource available and trust in alternate versions of themselves and their friends before it’s too late for all of them. 

If Ephraim and his companions can put their many differences aside and learn to work together, they might have a chance to save the multiverse. But ultimately, the solution may depend on how much they’re willing to sacrifice for the sake of humanity . . . and each other.


“Myers salts his tale with amusing, often-libidinous adolescent banter, and by cheating a little, lands his characters in good places in the end. Fans of alternate worlds will find a heapin’ helping here.”


“Myers dishes out just enough quantum physics to make the story plausible without swamping it in technical jargon. Subtle references to everything from Batman to Harry Potter will delight fans attuned to that sort of minutiae, and the action-packed plot will keep readers’ attention […] All in all, a highly enjoyable read.”

School Library Journal

“Myers’ sequel to FAIR COIN ups the ante for fantasy fans everywhere, without letting other elements of the story wither. The romantic tension throughout highlights the maturation of the characters. Unlike many sequels, this one wraps up loose ends in a satisfactory fashion.”

RT Book Reviews

“This is a great book and a highly enjoyable addition to the series.”

Portland Book Review

“[F]or unpredictable, intelligent, challenging YA science fiction, this series is a sure fire bet. I can’t wait to see what Myers has up his sleeve for the future.”


“I recommend it to you highly.”

Fantasy and Science Fiction Magazine

“Not just a great YA novel, Quantum Coin is a great science fiction novel in general. There is an abundance of heart and science to go around.”

SF Signal

“QUANTUM COIN delivers an exciting adventure. The book is a fast read, the dialogue is snappy, and the ideas are interesting.”

Fantasy Literature

“Myers shows he has the ability to do what so many authors aren’t able to: provide a satisfactory ending to a book. Everything comes full circle, although as with my review of the first book, I hope that this is not the last we see of Ephraim. This is a must-read for anyone who enjoyed FAIR COIN.”


“The second Coin science fiction is a terrific young adult thriller that makes great use of chaos theory and teen romantic angst. At times frantic-paced, yet the key triangle thrives and insures that Quantum Coin stays anchored. E.C. Myers provides a fabulous tale.”

Genre Go Round Reviews

“This book is much faster paced with lots more going on than Fair Coin and the scientific aspect much deeper and a lot more complex [...] The characters are engrossing and the story compelling.”

Between the Lines

“Myers has loaded Quantum Coin with emotional tension and Sci-fi elements that lovers of the genre will enjoy.”

Little Library Muse

“This doesn’t have the feel of a YA novel and while the plot is a bit less controlled than in its predecessor, I actually enjoyed it a good deal more.”

Don Dammassa

“I loved this duology! I’m sad it’s over, but QUANTUM COIN was an almost perfect ending for these characters.”

Pinkindle Reviews