According to a listing on Amazon, the book is written by comic book scribe Peter David and tells a story set in the game's universe.
Its synopsis reads: "The days of magic and adventure are fading away, giving way to the age of industry and science.
"As the aged last Hero sits upon the throne of Albion, two friends - the privileged Thomas and his loyal servant, John - set out for the East in search of a legendary beast: the vicious, rarely-seen balverine. But their desire for adventure may be their ultimate undoing-because their quarry has just found them."
The title will be available in paperback from October 5, priced $9.99 (£6.40).
Fable III is released for Xbox 360 on October 26 in the US and October 29 in Europe. A release date for the PC version is yet to be announced.