The document summarizes adaptations of the book Skellig. It was adapted into a 2009 film directed by Annabel Jankel, a 2003 play directed by Trevor Nunn, and a 2008 opera with music by Tod Machover and a libretto by David Almond. The book is about a boy named Michael who moves into an old house and finds a man living in the garage who eats spiders and mice. Michael is unsure about telling anyone due to his newborn sister's heart problems. He also befriends a girl named Mina who lives next door.