El medallon de fuego / The Fire Medallion

"Madrid, present today. Ana Garcâia-Brest, an art expert, receives a call from Martin, the young and mysterious treasure hunter whom she briefly met during the search for The Astrologer in The Emerald Table. An Italian tycoon has been assassinated and a powerful treasure is in danger: the Medallion of Hiram, a magical relic that belonged to the architect of the Temple of Solomon ... Both will undertake a frenetic search throughout Europe, facing infinite dangers. ... Berlin, 1945. In the throes of World War II, the destinies of four people are about to cross with unforeseen consequences for Hiram's Medallion: a bloodthirsty Nazi who scours a ruined Berlin with an obsession to get hold of the medallion; a young Spanish architecture student who's involved in an unsuspected intrigue; a German engineer who's in the crosshairs of the Russian intelligence service; and a Soviet army sniper who keeps an important secret"--Publisher marketing.