The Cascade Boundary

Six years after a significant event, Commander Elena Vasquez embarks on a mission to receive a mysterious cosmic record from a stellar civilization network that has observed our neighborhood for billions of years. The record reveals a history of contact attempts with Earth and a propagating boundary threatening multiple star systems, while the count of active signals diminishes. With limited time and a deep history spanning billions of years, Vasquez and her crew face a race against the clock to uncover the secrets embedded in this cosmic archive. The Cascade Boundary is the second installment in The Photosphere Chronicles, a series exploring first contact, deep time, and enduring decisions.