Toby Greywool and his friend Rafe (a wandering herbalist) journey to Coldwater Creek to meet the mysterious Sir Bert and have many strange experiences, some of them supernatural, which put Toby on a collision course with the world as he sees it. Eventually Toby arrives alone in Coldwater Creek to find that Sir Bert has been expecting him. Sir Bert subjects Toby to a demonical series of tests, all but breaking him in the process. The climax of the story is Sir Bert, riding an outsize Harley-Davidson, playing a game of cat and mouse which will end in a confrontation. Cornered, Toby is forced to face Hell undisguised - then the devil within himself. An allegorical tale which highlights the reality of angels and how they may help (or hinder) progress towards understanding.