A chilling, shivers-down-the-spine thriller...a high-quality piece of meticulously researched and realistic sci-fi/horror. This near-future tale falls within the blurry walls of young adult fiction but there's nothing to deter older readers. There are no punches pulled when it comes to offing major characters all the way through, and the final twist is satisfyingly merciless. - Sun - John Wyatt Gripping and suspenseful, 172 Hours will have readers constantly asking themselves how the characters can possibly survive. Original, creepy, intense, and quite violent, 172 Hours is page-turning sci-fi that will stay with readers long after the shocking and heartbreaking conclusion. - School Library Journal This irresistible premise is often intoxicating and occasionally downright terrifying... Ultimately, this downbeat novel offers few answers, just the cold, unfathomable depths of space - and that alone is pretty darn effective. - Booklist Creepy and bleak, Harstad's story is both psychologically and atmospherically disturbing. - Publishers Weekly A nifty surprise ending will get readers' attention. Interesting and original. - Kirkus