Electric Blue, Plague Green (Arbiter Book 1)

Some histories don’t want to be buried. They want revenge. Agent Reilly is used to dead ends. But when an alien ship is found drifting over Dublin – its entire crew twisted by a plague that leaves no trace – the mission that follows will throw up more questions than it answers. As factions turn on each other and forgotten powers stir beneath the streets, Reilly must track a bioweapon that defies science, confront a killer driven by grief and madness, and wrestle with the question that's haunted him for years: can a man shaped by trauma hold the line between worlds without becoming the very thing he fears? Step into a darkly spellbound Dublin, where magic mutates, monsters remember, and nothing stays buried for long.