I read Preston & Child also. I’ve just about finished Full Wolf Moon by Lincoln Child. It’s a creepy werewolf story.
I read that a while back too. The last Pendergast novel I read was "City of Endless Night." I've still got to read "The Pharaoh Key", the final book in the Gideon Crew series. I've pre-ordered the latest Pendergast novel "Verses for the Dead" which is being released on 12/31. I think your the first person I've run across on FR that reads Preston & Child.