Cold Warriors Infernal Game Series, Book 1.

"You died twenty years ago. Welcome back..." At the height of the Cold War, the British secret services formed the Hermetic Division, an agency charged with using supernatural means to defend the nation. It has only one mission: to find the mysterious Ragnarok artefacts, said to have the power to end the world. Now, two of the division's most powerful agents are sent on the trail of a corrupt Russian oligarch who may possess the artefacts. Their...