The Foxworthy Files: The Skull Collector - #3 In the Series

FBI agent Lili Foxworthy and her actor husband Peter Wolff, make the acquaintance of an antiques dealer, simply named Tallis. They do not know his history or the terrible secret he keeps hidden, until he corners them with a life-threatening situation. One thing to his disadvantage is the fierce determination within Lili's small frame, to protect her husband at any cost.