Klíč soudného dne – Rollins James (2019)

At Princeton University, a successful geneticist dies in a laboratory working with dangerous biological material. A Vatican archaeologist is found dead in the Basilica of St. Peter in Rome. In Africa, the son of an American senator is murdered near a Red Cross camp. Three murders on three continents are connected by a chilling detail: all the victims are marked with a druidic pagan symbol that someone has burned into their skin. The bizarre deaths force Commander Gray Pierce and Sigma Force to race against time: they must unravel a mystery rooted in ancient history tied to a shocking crime against humanity encoded in a mysterious medieval manuscript. The first clue appears in a mummified body buried in an English bog – and it reveals a horrific secret that threatens the entire world. With the help of two women from his past – an ex-lover and a new partner – Gray must piece together the terrifying truth from individual fragments. However, the revelation does not come without a price, and to save the future, he must sacrifice one of the women by his side. Sigma Force faces the greatest threat to humanity in an adventure that spans from the Roman Colosseum to the icy peaks of Norway and the ruins of medieval monasteries to the forgotten tombs of Celtic kings.