Mr Mumbles (Invisible Fiends, Book 1)Kyles imaginary friend from childhood is back with a vengeance. Kyle hasn't seen Mr Mumbles in years. And there's a good reason for that: Mr Mumbles doesn't exist. But now Kyle's imaginary friend is back, and Kyle doesn't have time to worry about why. Only one thing matters: staying alive A major series from a fresh talent, brought to you by the publisher that put horror on the map.