SOME DOORS SHOULD STAY CLOSED.

Something unwanted has come to Herring’s Cross.

It stalks the streets at night. It feeds without mercy. And it is only the beginning.

When an ancient relic known as the Book of Hours resurfaces after centuries lost to the world, it opens doorways between realms—doorways that were never meant to be opened. Through them come creatures of nightmare, unleashed upon an unsuspecting Long Island town.

The Templar Order sends Cade Williams and the Echo Team to contain the threat. But as the Knights battle the horrors overrunning Herring’s Cross, Cade realizes the monsters are only a distraction. Someone is using the chaos to hide a far more dangerous plan.

Outnumbered and running out of time, the Templars are forced to accept help from an unlikely source: a local coven whose command of the arcane may be the only thing standing between Herring’s Cross and complete destruction.

Ancient magic and modern firepower are about to collide.

And some doors, once opened, can never be closed again.