Clothahump the wizard is dying. His only salvation lies in arcane medicinal powers from far across the Glittergeist ocean. Weary from his trials, Jon Meriweather, the Spellsinger, must set out once more on a perilous journey, with Mudge the Otter his reluctant guide.
Genre:
Fantasy 
Hardback Editions
July 1986 : UK Hardback
Title: Day of the Dissonance (Spellsinger Series)
Author(s): Alan Dean Foster
ISBN: 0-356-12178-X / 978-0-356-12178-9 (UK edition)
Publisher: TBS The Book Service Ltd
Availability:
Amazon Amazon UK Amazon CA May 1984 : USA Hardback
Title: Day of the Dissonance
Author(s): Alan Dean Foster
ISBN: 0-932096-30-1 / 978-0-932096-30-2 (USA edition)
Publisher: Phantasia Pr
Availability:
Amazon Amazon UK Amazon CA Paperback Editions
April 2014 : USA Paperback
Title: The Day of the Dissonance (The Spellsinger Adventures)
Author(s): Alan Dean Foster
ISBN: 1-4976-0174-6 / 978-1-4976-0174-1 (USA edition)
Publisher: Open Road Media Sci-Fi & Fantasy
Availability:
Amazon Amazon UK Amazon CA March 2005 : USA Mass Market Paperback
Title: Spellsinger, Book 3: Day of The Dissonance
Author(s): Alan Dean Foster
ISBN: 1-4165-0426-5 / 978-1-4165-0426-9 (USA edition)
Publisher: I Books
Availability:
Amazon Amazon UK Amazon CA 1984 : USA Mass Market Paperback
Title: The Day of the Dissonance (Spellsinger Book 3)
Author(s): Alan Dean Foster
ISBN: 0-446-34363-3 / 978-0-446-34363-3 (USA edition)
Publisher: Warner Books
Availability:
Amazon Amazon UK Amazon CA May 1985 : UK Paperback
Title: The Day of the Dissonance (Spellsinger Vol. 3)
Author(s): Alan Dean Foster
ISBN: 0-7088-8142-4 / 978-0-7088-8142-2 (UK edition)
Publisher: Orbit
Availability:
Amazon Amazon UK Amazon CA May 1985 : UK Paperback
Title: Spellsinger 3:Day Of Dissonance
Author(s): Alan Dean Foster
ISBN: 1-85723-143-0 / 978-1-85723-143-4 (UK edition)
Publisher: Orbit
Availability:
Amazon Amazon UK September 1984 : USA Mass Market Paperback
Title: Day of the Dissonance 3
Author(s): Alan Dean Foster
ISBN: 0-446-32133-8 / 978-0-446-32133-4 (USA edition)
Publisher: Warner Books> C/o Little Br
Availability:
Amazon Amazon CA September 1984 : USA Mass Market Paperback
Title: Spellsinger #03 the Day of the Dissonance
Author(s): Alan Dean Foster
ISBN: 0-446-34158-4 / 978-0-446-34158-5 (USA edition)
Publisher: Not Avail
Availability:
Amazon Kindle Editions
August 2012 : UK Kindle edition
Title: The Day of the Dissonance (Spellsinger Book 3)
Author(s): Alan Dean Foster
Publisher: Gateway
Availability:
Amazon UK February 2011 : USA, Canada Kindle edition
Title: The Day of the Dissonance (The Spellsinger Adventures)
Author(s): Alan Dean Foster
Publisher: Open Road Media Sci-Fi & Fantasy
Availability:
Amazon Amazon CA 