When shadows begin disappearing and the world slowly forgets León's existence, he discovers that the Boundary has been keeping memories that were never meant to be erased.
At the center of the mystery is Elias—the forgotten fifth member of their original journey.
As León, Mireya, Tomás, and Rafael recover the truth behind Elias's disappearance, they uncover a betrayal that changed the course of every reality they knew.
HAT GAO is the author and creator of The Boundary Saga, known for dark fantasy, mystery, parallel worlds, and reality-bending stories. Their work explores memory, identity, choice, and the hidden boundaries between worlds.