Shadow Game (GhostWalkers‪)‬

Publishers Weekly calls Christine Feehan's Shadow Game a "sensational offering" of supernatural romance. Scientist Lily Whitney is recruited by her father to help on a top-secret government experiment involving a group of psychic soldiers. Blessed with the gift herself, Lily is immediately drawn to the brooding Captain Ryland Miller. But when her father is murdered, Lily will need Ryland's help to catch the killer.