The Cathedral of Known Things: Book Two - Edward Cox

Divided, hunted and short on resources, the surviving members of the Relic Guild are in real trouble. Their old enemy, the Genii, and their resurrected master have infiltrated Labrys Town and taken over the police force.

So the Relic Guild must flee their home, and set off on a dangerous journey across the worlds of the Aelfir. One that will lead them to a weapon which might destroy the Genii. Or the whole universe...

And forty years before all this, the war which led to the fall of the Genii continues. And what happens to the Relic Guild during that conflict will change the course of their desperate flight.