This 15th addition to the series will not disappoint fans. Nate is awakened by a phone call in the middle of the night. His friend Rosamond needs his help-her cat's pillowcase has disappeared, and the feline, Big Hex, is pacing and keeping her awake. So that all concerned may get some sleep, the young detective sets out to solve the case. This is another well-told, humorous mystery that young readers will be able to solve if they zero in on Sharmat's clues.