As the pyres of the Inquisition burned, the faith of Decimus Vespilo did not waiver. Holding to the tenants of his training he remained detached from that which he visited on others. Assigned to an Investigation he deemed beneath him he is caught up, not only in a rapidly growing movement but a conspiracy that could destabilise the teachings of the temple to which he devoted his life. Is the mysterious preacher the "Phoenix" a threat or the salvation he has been subconsciously seeking since consigning his own grandfather to the flames when just a child? As his ties to the movement grow...