Despite the fact that it belonged to his grandfather, thenarrator/hero of this story doesn't like the old hat that his aunt has given him as a present. Until he puts it on and discovers its magicproperties. Suddenly our hero becomes a spy, under surveillance by amysterious other. In order to lose his tail, he travels to an oasis,the desert and even crosses the ocean in a boat. That's when hismother calls him to go to bed. But he's not upset: He can keep reading his favorite book of adventure stories, and decides after all thathis grandfather's old hat might be ugly, but he likes it. A loveletter to the imagination with which the reader shares in theadventures and identifies with the child narrator.