Little Unicorn is sad / Aurélie Chien Chow Chine ; translation by Philippa Wingate.

Little Unicorn is just like all the other unicorns - well, nearly. He has a magic mane that changes colours depending on how he is feeling. Today he is feeling sad. He is arguing with his friends. Now he feels like he's been invaded by a big grey cloud of sadness. Kids can discover how to chase away bad feelings and feel good again, with easy to master breathing exercises.