When 18-year-old British sailor Simon Parkes disappeared on a winter's night in 1986 Gibraltar, he was presumed AWOL. He has never been found.Almost forty years later, journalist Ros Astengo stumbles across the case while reporting on the daily news for the Gibraltar Broadcasting Corporation. As new evidence emerges linking Parkes' death with convicted serial killer Alan Grimson, who was on the Rock on the night of his disappearance, Astengo is quickly drawn further and further into the abandoned cold case, driven to keep his story alive and to find answers for his now-elderly parents.The Rock is a twisting, heart-breaking and gripping narrative, following one woman's determination to find the truth, bring peace to a grieving family, and profile a brutal serial killer. Teetering on the edge of revelation, this story exposes the extent of Grimson's depravity ahead of his possible release from prison, lays bare the ineptitudes and indifferences of the Royal Navy Police, and ultimately seeks to answer the burning question:What happened to Simon Parkes?