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Overview

A legendary angel. A modern madman. A mission that could unleash the armies of Heaven.

As Master of the Order of Thaddeus and a former Army Ranger, Silas Grey has faced ancient threats and modern enemies alike. But nothing prepares him for the chaos that erupts after a shocking assassination attempt hits close to home—followed by the sudden disappearance of two elite agents investigating a mysterious case tied to a growing spiritual danger.

Something sinister is brewing. Sacred relics are van...

The Guardian Exchange (Order of Thaddeus, #14)