There's been unexplained attacks on swimmers at Lake Pumpkinseed. Doc Stone calls in an old friend to help. Dr, Charles 'Chewy' Andijar brings his crack diving teams with him as they work tirelessly with Sheriff Cash Green, Deputies Ericka Yamato and Horace Scofield to find out what's causing the problem. They stumble onto more than they're expecting. Ichabod Wren comes for a visit from the University of Maine and the longest, hottest summer on record continues. Return to The Falls and drop in on your favorite characters Book 37 in the series.