The Templar’s Revenge is the 19th in the James Acton series (I’ve only read a handful). In this novel Acton and his wife are convinced to travel to view a mysterious artifact. The trip seemed unusual and when they have serious trouble trying to get to their host’s house their misgivings are realized.
“Acton’s eyes narrowed as he processed what had just been said. “You’re a Templar?” There was no hiding the skepticism in his voice, and if it weren’t for the fact there were men on the other side of the wall with guns, he would have turned on his heel and walked back to the airport. But that fact, and something about the man himself, gave him pause. “Yes.” “That’s preposterous.” Laura was the one who voiced his opinion for him.”