Life seems perfect for beautiful young Charity Freestone. She lives in the wealthiest part of subterranean techno-paradise Diamond City, her beloved older sister Ursula is a hugely popular celebrity and both girls are courted by the powerful elite. However, there is something wrong, something Charity isn't being told. Her suspicions are confirmed by a devastating attack on her parents and the horrible realisation that she and Ursula are next. The wickedly seductive Harlan Akintan might have the answer but what must Charity do to learn it? Pursued by a vengeful sub-class and targeted by an insane cult, Charity is hurled into a terrifying conspiracy that reveals the awesome secret of who she really is. 'Andrew Wallace shows a real talent for world building in this well-written, fast-paced debut novel. From the first page, 'Sons of the Crystal Mind' ('Diamond Roads' Book 1) is packed with sci-fi smarts. I'm looking forward to reading more from this author.' Anne Charnock, author of 'Sleeping Embers of an Ordinary Mind' (Guardian SF Books of the Year 2016) and 'A Calculated Life' (nominated for the Philip K Dick Award) 'Fast-paced, clever and beautifully written, 'Sons of the Crystal Mind' is a richly imagined dystopian thriller that introduces the latest in a long line of cool, kick-ass SF heroines. Charity Freestone combines the strength of Ripley with the wiles of Katniss and the vulnerability of Halo Jones. If you liked 'Wool' you'll love this.' Mark Edwards, bestselling author of 'The Magpies'