Five Go To Demons Rocks is the nineteenth novel in Enid Blyton's highly popular Famous Five series. The cousins, Julian, Dick, and Anne, their sister George (Georgina), and their dog Timmy travel to a wild stretch of coastline. They discover a mysterious, deserted house near a dangerous, legendary cluster of rocks. As usual, the children stumble upon a suspicious group of adults, leading them to investigate secrets that involve flashing lights, secret passages, and the potential danger of the titular rocks.