In a nutshell: passionate love story continues – in hell | Zoe and X are soulmates, even though she’s a 21st century teenager and he’s a bounty hunter from the Lowlands, ie Hell. They were brought together in The Edge of Everything, but separated at the end when he sacrificed himself for her and returned to the Lowlands. But never say forever – in this equally torrid and thrilling episode the two are reunited, Zoe recklessly plunging into the underworld to find X, now involved in a search for his missing mother. The book’s appeal lies not just in its steamy romance; Zoe is a sharp, appealing character and readers will love the supporting cast too. Despite being set in Hell, there are a surprising numbers of laughs while the ending will satisfy everyone. This is one to recommend to fans of Laini Taylor’s Daughter of Smoke and Bone.