Swimming lessons at Camp Lone Wolf take a very strange turn when the new instructor arrives. Nessie McFarland has an unusual obsession with the water, and she spends an awful lot of time exploring the lake in her black scuba gear. When the kids catch the news that the famous Loch Ness monster has mysteriously vanished from Scotland, they start connecting some very bizarre dots. The missing creature is described as skinny and dark with a small head and a long neck, which looks exactly like Nessie when she wears her diving suit. Melody, Liza, Howie, and Eddie decide it is time to investigate the murky waters of their summer camp to see what is really going on. This fun chapter book plunges young readers into a splashy, suspenseful mystery filled with everyday camp activities and legendary creatures. It is an engaging adventure that keeps kids guessing until the very end.