The Red Equinox has dawned, and the old gods who have slept for aeons are stirring. Urban explorer and photographer Becca Philips was raised in the shadow of Miskatonic University, steeped in the mysteries of her late grandmother's work in occult studies. But what she thought was myth becomes all too real when cultists unleash terror on the city of Boston. Now she's caught between a shadowy government agency called SPECTRA and the followers of an apocalyptic faith bent on awakening an ancient evil. As urban warfare breaks out between eldritch monsters and an emerging police state, she must uncover the secrets of a family heirloom known as the Fire of Cairo to banish the rising tide of darkness before the balance tips irrevocably at the Red Equinox.