The highly anticipated sixth book in the bestselling DI Nick Dixon Crime Series. The body of an elderly man is found in an abandoned World War Two pillbox beside the Bridgwater and Taunton Canal. With no obvious motive and no credible suspect, DI Nick Dixon starts digging into the victim's past. The more he digs, the deeper Dixon is drawn into a case that takes him from the cave systems beneath rural Somerset to the heart of government, and threatens to expose a military cover-up at the highest level. Blocked by a wall of silence, Dixon must unravel a dangerous conspiracy before the killer strikes again.