Arkangel

In the latest installment of the bestselling Sigma Force series by James Rollins, a Vatican archivist's murder unveils a centuries-old conspiracy connected to the Russian Tsars and a hidden treasure within the Golden Library. As Sigma Force embarks on a perilous quest to uncover the truth, they contend with a domestic attack that has left their agency vulnerable. Racing against time and facing adversaries across the globe, Commander Gray Pierce must navigate ancient myths and modern threats that could either save humanity or plunge it into chaos. This gripping tale intertwines international intrigue with a battle for lost knowledge, set against a backdrop of escalating tensions between powerful nations.