Below you'll find a Sheila Cassidy books list, including published and even unpublished works. This Sheila Cassidy bibliography includes all books by Sheila Cassidy, including collections, editorial contributions, and more. Any type of book or journal citing Sheila Cassidy as a writer should appear on this list. The full bibliography of the author Sheila Cassidy below includes book jacket images whenever possible. Sharing the darkness and Audacity to Believe are included on this poll, along with many more.