1913. Storm clouds gather over Europe – and in a basement in Vienna, an unquiet spirit stirs...

Adeline always dreamed of visiting the Austrian capital, so the chance to work there seems like a dream come true. But, from the moment she sets foot in the elegant mansion that belonged to the late archeologist Dr. Emeryk Quintillus, she senses a presence—one so menacing and evil, she fears for her sanity and her life.

Strange noises from behind the walls, shadowy figures that cannot be there, hieroglyphics that appear on the wall, and an enigmatic portrait of a long dead Egyptian queen. Quintillus had made the discovery of the century—so why did he hide it?

Ancient enemies are at war in this mysterious house, and Adeline's fate is inextricably woven to theirs.