by Preston W. Child (Author)

Jean-Luc Gerard and his apprentice Thaddeus Rose continue their studies of the occult and of practicing witchcraft when a mysterious old tome arrives at their bookstore.
When the impromptu delivery points toward works of the famed horror author H.P. Lovecraft, they find themselves facing cosmic terrors and fragile boundaries between insanity and reality.
Meanwhile, a new member of the Knights Templar embarks on her first assignment, but her partner, Cedric McKellan, is acting strangely and making her question everything she thought she knew.

As tentacles are summoned by clandestine rituals and Templar secrets are exposed, Louis Laurent has plans of his own, ones that involve the darkest sides of magic ...