Bloodless
(Book)

Series numeration from goodreads.com.

A legendary heist: On the evening of November 24, 1971, D.B. Cooper hijacked Flight 305, Portland to Seattle, with a fake bomb, collected a ransom of $200,000, and parachuted into the night, never to be seen again. Perhaps. A brutal crime steeped in malevolence: Fifty years later, Agent Pendergast takes on a bizarre and gruesome case: in the ghost-haunted city of Savannah, Georgia, bodies are found completely drained of blood, sowing panic and reviving the infamous legend of the Savannah Vampire. A case like no other in Pendergast's career: Through twists and turns, Pendergast and his partner, Agent Coldmoon, race to understand how these murders are connected to the most mystifying hijacking in American history. Together, they discover not just the killer, but an unearthly evil beyond all reckoning.