Three Purgatory Poems: The Gast of Gy, Sir Owain, The Vision of Tundale by: Edward E. Foster (Editor)Publisher Location: Kalamazoo, MichiganPublisher Name: Medieval Institute PublicationsPublication Date: 2004Text(s) Acknowledgments Introduction Select Bibliography The Gast of Gy Introduction Text and Notes Sir Owain Introduction Text and Notes The Vision of Tundale Introduction Text and Notes Glossary