The Sonoran Cipher — A Lucian Rook & Elara Quinn Mystery

When archaeologist Dr. Miriam Holt vanishes without a trace from a remote dig site deep in the Arizona desert, investigators Lucian Rook and Elara Quinn are called in to uncover the truth. Holt had spent months excavating an isolated ridge outside a long-abandoned mining town, and colleagues say she made a discovery in her final days that she refused to explain, even to her own team. As Rook and Quinn trace her final movements across sunbaked canyons and forgotten settlements, they find a camp stripped clean, a research journal written in a private code, and a growing list of people who wanted Holt's find kept buried. What begins as a missing-persons case soon widens into a decades-old conspiracy reaching from a defunct university department to a private collector willing to kill for the past. With the desert heat closing in and the truth buried under generations of silence, Rook and Quinn must decide how far they are willing to go to bring Miriam Holt home, and whether the discovery she died protecting is one the world is ready to face.