The Battle of Ahto: A Memoir was the memoir of Shasan adept Fewash Welko. Part of the book recounted the Battle of Ahto and his meeting with Darth Vader afterward. The book was originally written in Selkatha, and was later translated into Basic.
Sources
Manaan: Depths of History on Wizards.com (backup link) (original site is defunct)
In other languages