Fragments: Memories of a Wartime Childhood is a 1995 book, whose author used the pseudonym Binjamin Wilkomirski, which purports to be a memoir of the Holocaust. It was debunked by Swiss journalist and writer Daniel Ganzfried [de] in August 1998. The subsequent disclosure of Wilkomirski's fabrications sparked heated debate

https://en.m.wikipedia.org/wiki/Fragments:_Memories_of_a_Wartime_Childhood

Picture of what burnt manuscript fragments look like from the source below ( different fragments than the book above )

https://blogs.bl.uk/digitisedmanuscripts/2013/02/crisp-as-a-poppadom.html