Danger intensifies for the Shadowhunters as the New York Times best-selling Infernal Devices trilogy comes to a close.

If the only way to save the world was to destroy what you loved most, would you do it?

The clock is ticking. Everyone must choose.

Passion. Power. Secrets. Enchantment.

Danger closes in around the Shadowhunters in the final installment of the best-selling Infernal Devices trilogy.