The Third Book of Lowmoor. In a world shaped by the scattered remains of a giant civilisation live communities of 6 inch tall humans. That world is in deadly peril – in Lowmoor settlement Jewel and Thorn discover a conspiracy that threatens everything they know and which they alone can thwart. In order to enhance already remarkable powers, Querne Rasp seeks to complete her own collection of crystals and wield the five-stone crystal star, with its dark vortex. Meanwhile, the enigmatic Racky Jagger approaches a crisis of his own.  Jewel and Thorn’s quest will take them into a ruined giant iron-works where a fanatical tribe of humans wage unending war on rats and into a Dark Time church inhabited by a sinister cult, where their courage and ingenuity will be tested to the limit…