Publisher's Synopsis
France's best-selling children's emotional picture book, improves children's frustration tolerance and dispels fear! Build armor of courage with Gaston! Gaston is a seemingly ordinary unicorn whose mane changes color according to his mood! Every night, everything gets so dark. At this time, Gaston will be a little anxious. Because it was time to go to bed, the room became dark. Gaston was so scared that he even slept with his head covered. What can Gaston do if he's shaking all over?
