Myrmidon Steel

From the publisher:

The Myrmidon warriors of the Northern States of the Greek Empire are a pan-Hellenic network founded by Eudoros, one of Achilles’ chief commanders at Troy. Each Chapter of the Myrmidons maintains a presence in every major Greek State. With new threats to the Greek Empire emerging from within and without, the Myrmidons called a summit for all Chapter Commanders to meet at Delphi in the centre of the Greek Empire. When Commander Liakis Solus of the Spartan Myrmidon Chapter is found murdered in a pool of his own blood, the City of Delphi is locked down and the Myrmidons are isolated within its walls.