Doomsday Key

Three brutal murders, three high-profile victims, three bodies marked with a mysterious and archaic symbol...The massive SIGMA Force thriller from the NEW YORK TIMES bestselling author of MAP OF BONES and THE LAST ORACLE.At Princeton University, a famed geneticist dies inside a biohazard lab. In Rome, a Vatican archaeologist is found dead in the heart of St Peter's Basilica. In Africa, a US Senato...