Over the Edge contains the following tales:

• "Foreword", by August Derleth
• "The Crew of the Lancing", by William Hope Hodgson
• "The Last Meeting of Two Old Friends", by H. Russell Wakefield
• "The Shadow in the Attic", by H. P. Lovecraft and August Derleth
• "The Renegade", by John Metcalfe
• "Told in the Desert", by Clark Ashton Smith
• "When the Rains Came", by Frank Belknap Long
• "The Blue Flame of Vengeance", by Robert E. Howard & John Pocsik
• "Crabgrass", by Jesse Stuart
• "Kincaid's Car", by Carl Jacobi
• "The Patchwork Quilt", by August Derleth
• "The Black Gondolier", by Fritz Leiber
• "The Old Lady's Room", by J. Vernon Shea
• "The North Knoll", by Joseph Payne Brennan
• "The Huaco of Señor Perez", by Mary Elizabeth Counselman
• "Mr. Alucard", by David A. Johnstone
• "Casting the Stone", by John Pocsik
• "Aneanoshian", by Michael Bailey
• "The Stone on the Island", by J. Ramsey Campbell

• Jaffery, Sheldon (1989). The Arkham House Companion. Mercer Island, WA: Starmont House, Inc. p. 73. ISBN 1-55742-005-X.
• Chalker, Jack L.; Mark Owings (1998). The Science-Fantasy Publishers: A Bibliographic History, 1923-1998. Westminster, MD and Baltimore: Mirage Press, Ltd. p. 41.
• Joshi, S.T. (1999). Sixty Years of Arkham House: A History and Bibliography. Sauk City, WI: Arkham House. p. 85. ISBN 0-87054-176-5.
• Nielsen, Leon (2004). Arkham House Books: A Collector's Guide. Jefferson, NC and London: McFarland & Company, Inc. p. 91. ISBN 0-7864-1785-4.