'Alex Caine wishes he had a direction, but it pays to be careful what you wish for. Alex Caine is trying to build a new life and come to terms with his recently acquired magical talents, not to mention his Kin girlfriend, Silhouette. He can't help feeling untethered, but one night the answer seems to present itself when he is approached by a representative of a shadowy organisation. Armour is recruiting and they want Alex on their side. But the ghosts of Bound aren't gone. The relic hunter, Claude Darvill, is trying to get in touch with his father, Robert Hood. Darvill takes over Black Diamond Incorporated and starts hunting. He is determined to find out what happened to Hood and won't let anything stand in his way. And in Britain's north, three amateur occult mages think they have uncovered an ancient magic that will reveal to them great powers. But they have no idea what they're releasing. When all these forces converge, Alex and Silhouette find themselves trapped in a nightmare world from which escape seems impossible. In this sequel to the bestselling Bound, Alex Caine will need all his skills if he has any hope of surviving Obsidian.' (Publication summary)