Unseen World of Poppy Malone

Evidence: 1. A snicker. Soft but clear. 2. The mess. 3. White teeth gleaming in the shadows. Possibilities: 1. Vampires 2. Ghosts 3. Goblins 4. Werewolves 5. Fairies. To do: 1. Record evidence in logbook. 2. Do not tell Mom and Dad! 3. Read (again!) The Little People: A Comprehensive History of Hobgoblins, Pixies, Brownies, and Sprites. 4. Set a trap. 5. Set up motion-sensor camera. 6. Ask Will and Franny for help?

Nearly-ten-year-old Poppy Malone finds her skepticism challenged again when she must deal with troublemakers at Lake Travis who look and act suspiciously like mermaids, which she knows do not exist.