A 19th-century conspiracy is about to be shattered by a 21st-century forensic artist.

In 1857, a wagon train in Utah was assaulted by a group of militant Mormons calling themselves the Avenging Angels. One hundred and forty people were murdered, including unarmed men, women, and children. The Mountain Meadows Massacre remains controversial to this day—but the truth may be written on the skulls of the victims.

When renowned forensic artist Gwen Marcey is recruited to reconstruct the faces of recently unearthed victims at Mountain Meadows, she isn’t expecting more than an interesting gig . . . and a break from her own hectic life.

But when Gwen stumbles on the ritualized murder of a young college student, her work on the massacre takes on a terrifying new aspect, and research quickly becomes a race against modern-day fundamentalist terror.

As evidence of a cover-up mounts—a cover-up spanning the entire history of the Mormon church—Gwen finds herself in the crosshairs of a secret society bent on fulfilling prophecy and revenging old wrongs.

Can a forensic artist reconstruct two centuries of suppressed history . . . before it repeats itself?