Lucifer Omnibus #1

In exchange for a letter of passage, Lucifer agrees to do a job for his former employer. Someone is granting human wishes and all of creation is threatened. Lucifer goes to Briadach, Lord of the Lilim in exile, for guidance. Briadach tells him to find a young man with Rett Syndrome, named Paul Begai, who is unable to speak. Unfortunately, by the time Lucifer locates him, it is too late; his sister Rachel has just wished him dead.