The Traitor's Pawn, Large Print

When FBI agent Jack Shannon arrives in Corpus Christi, Texas, he is focused on one thing: find the man who has been selling encrypted government secrets to the Chinese through online birding chat rooms. But when a senator is shot during a hunting trip and the woman he was with is abducted, Jack agrees to join the search — especially when he discovers that the kidnapping victim is Aubrey Grayson, a woman he was once in love with.