At a special school in Pretzeltown, cats are trained to become warm, perfectly fitted, specialty hats. In Daniel Pinkwater's wry tale for readers 5 to 8, Thermal Herman 6? is the top Kat Hat in Matt Katz's company, world-renowned for his warmth and agility. When a friend wanders off with a brain freeze and lands in peril, Thermal Herman must rush in to save the day. Filled with zany details, Aaron Renier's detailed gouaches add greatly to the fun.