**Starfleet Corps of Engineers** When a new security guard reports for duty, it sets *da Vinci* security chief Domenica Corsi off in ways that confuse both her staff and her sometime lover Fabian Stevens. When Stevens confronts her, it only makes matters worse — until Corsi takes Stevens into her confidence … Ten years ago, Corsi served on the *U.S.S. Roosevelt.* On a trip to the Federation world of Izar, Corsi was assigned to work with a local peace officer named Christine Vale to try to solve a multiple homicide. But the trail of evidence leads down a road Corsi refuses to take — a decision that will have tragic consequences for the young officer.