The Book of Flies was found in the cave Chavet, near the Pont-D’Arc, on the Ardeche River in France.

The team that found the Book of Flies.   (note the flies around the beasts heads)  

The minuscule book of fly scripture was encased in the petrified scat of a long extinct cave bear. The Bhuti Fly characters were carefully photographed in exact order from the delicate tanned fly wings extricated from an air bubble in the petrified scat. The Bhuti Fly letters were scribed, according to the text, by a race of royal literate flies that died out many millennium ago.  Scientists believe that early man, the ancient cave painters, and flies communicated regularly and that flies brought the concept of the written word to man (the monsters)