This is an adventurous, creative, visual book that explains Alberto’s story, a boy who has never been especially courageous until the day he doesn’t have a choice. It all begins the day that Morfeo, a strange globetrotter, arrives to the village with a cart that seems to hide a secret. What would happen if the worst nightmares imaginable became reality? How can you fight a nightmare? Are you brave enough to come face to face with your most secret fears? This is the challenge that awaits Alberto. If he doesn't lock up all the nightmares before bedtime, they'll live on forever in the real world. Marta recreates in a realistic landscape fascinating characters and scenes as the ones that exists only in the young reader’s imagination.