The zany alien Professor Xargle is back, with a lesson for anyone who prefers a meow to a bow-wow. It's about Tigerlets, those furry, four-footed creatures that any cat-loving Earthlet will immediately identify and take to heart. Full-color illustrations.The zany alien Professor Xargle is back, with a lesson for anyone who prefers a meow to a bow-wow. It's about Tigerlets, those furry, four-footed creatures that any cat-loving Earthlet will immediately identify and take to heart. Full-color illustrations.