In the rotting city of Ghalis, a terrifying plague is turning citizens into living, agonizing crystal. Silas, a desperate plague doctor, discovers the source of the affliction is an ancient, crystalline entity trapped beneath the city’s cathedral. To save his infected young apprentice, Silas strikes a horrific bargain with the entity, descending into a spiral of murder and dark magic, only to discover that cosmic horrors have a very different definition of salvation.
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