Mysticism, angels, evil spirits: Harvard Professor Cal Donovan investigates a scrying stone linked to the death of his parents in this thrilling archaeological adventure story.

Iraq, 1989. During an archaeological excavation Cal Donovan’s father, Hiram Donovan, uncovers a piece of meticulously knapped obsidian. Instinct tells him to hide it from others on the dig. He sends it back to his wife in America with a note: John Dee, British Museum/Scrying stone?

Then Hiram is murdered. It was made to look like an accident, but there was a witness. Decades later, on his death bed, the witness finally reveals what he saw. Soon afterwards, Cal’s mother is also killed.

Why were his parents murdered, and by whom? When Cal finds the still unopened parcel containing the mysterious stone amongst his mother’s possessions, he is set upon a quest to discover the truth.

What he finds are fanatics determined to obtain the mystical stone. But for what dark purpose?

This action-packed novel starring Professor Cal Donovan is perfect for fans of the adventures of Indiana Jones and for the thrillers of Dan Brown, Steve Berry and Lincoln Child.