The city of Guerdon stands eternal. A refuge from the war that rages beyond its borders. But in the ancient tunnels deep beneath its streets, a malevolent power has begun to stir. The fate of the city rests in the hands of three thieves. They alone stand against the coming darkness. As conspiracies unfold and secrets are revealed, their friendship will be tested to the limit. If they fail, all will be lost, and the streets of Guerdon will run with blood.

Gyre hasn't seen his beloved sister since their parents sold her to the mysterious Twilight Order. Now, 12 years after her disappearance, Gyre's sole focus is revenge, and he's willing to risk anything and anyone to claim enough power to destroy the Order. Chasing rumors of a fabled city protecting a powerful artifact, Gyre comes face-to-face with his lost sister. But she isn't who she once was.

The Empire of the Wolf simmers with unrest. Rebels, heretics, and powerful patricians all challenge the power of the Imperial throne. Only the Order of Justices stands in the way of chaos. Sir Konrad Vonvalt is the most feared Justice of all, upholding the law by way of his sharp mind, arcane powers, and skill as a swordsman. At his side stands Helena Sedanka, his talented protégé, orphaned by the wars that forged the Empire.

Ferius Parfax has a simple plan: Kill every last inhabitant of the spell-gifted nation that destroyed her people, starting with the man who murdered her parents. Killing mages is a difficult and dangerous business, of course, but when she meets the inimitable and extraordinary Durrall Brown, she discovers that physical strength is not the only way to defeat evil of all kinds. So Ferius undertakes to study the ways of the Argosi: the loosely-knit tribe of tricksters known for getting the better of even the most powerful of spellcasters.

Aranthur is a promising young mage. His talents compel him to attend University to develop his abilities further. But the world is not safe for a mage, and after a confrontation leaves him no choice but to display his skill with a blade, Aranthur is instructed to train under a renowned Master of Swords. During his intensive training he begins to question the bloody life he's chosen. And while studying under the Master, Aranthur is conscripted to the City Militia. Soon after, he finds himself thrown into the middle of a political revolt that will impact everyone he's come to know.