When Evren Guerra discovers a small, flute-like key hidden inside a century-old violin, he awakens more than a sound—he sets a vibration into motion. One that travels beyond time, stirring the Moon, and reaching the soul of a woman who vanished in 1903.

Lyra Alvarado was a time traveler on a mission meant to last only days. But when she lost the key that anchored her to the present, she vanished into the past. Forgotten by history, but not by destiny.

Now, a century later, the universe begins to call her home.

As whispers travel between Earth and Moon, fate entwines two souls across lifetimes. Guided by starlight, vibration, and three mysterious dogs who guard the path between timelines, Evren must follow the frequency back—through love, memory, and a world where time is no longer linear… but alive.