Margarita del Mazo is a writer and storyteller who is greatly admired in Spain. She has almost twenty books to her name, many of which have been translated into other languages. Among them are the bestsellers Camuñas and The Flock (El rebaño in Spanish), winning the Madrid Booksellers Guild Award and the Miami Cuatrogatos Foundation Award for best illustrated children's book.

"Carlitos wants to be a superhero and gets an incredible costume. He decides that he will be called Super M, after the flies, which he loves. But can he be a superhero if he wears glasses? And what will be his superpower? Carlitos has no doubt: he wants to be invisible!"--