From USA Today bestselling author Gwendolyn Womack comes a thrilling and romantic science fiction adventure about a musician who travels back to the 1800s on the currents of sound and falls for an earl as the two must decode the secrets of time and music to save both of their futures.

Magellan Brighton may be a musical prodigy with limitless talent, but her soul yearns for something more than playing in concert halls or at weddings. As the world is on the brink of a catastrophic polar shift, she mysteriously vanishes while playing an ancient organ and awakens in 1829. The answers to why lie in a lost diary belonging to Gwynedd, Merlin's forgotten twin sister.

Rhys Sherwood, the dashing and brooding Earl of Liron, is still haunted by the memory of his father, a scientist and historian who was killed in an experiment gone wrong. When Rhys stumbles upon a strange woman at the center of his estate's labyrinth, her arrival couldn't have come at a worse time, interrupting an important house party he'd planned to select his future wife.

Yet the two find themselves inexplicably drawn to each other, and when they discover that Magellan's musical gifts and the diary are connected, they must uncover its secrets and connection to the key to saving the world. From candlelit medieval abbeys to opulent Renaissance courts in a perilous journey through the past to find the key, Magellan must risk everything and face the sinister forces who want the key for themselves.