This publication is a contribution to the history and memory of intangible cultural heritage narrative in Algeria. In the course of his investigations, the author has come across, thanks to the technologies of computerization, digitization and digitalization, a treasure unknown to the public and a large number of researchers in the various specialties and fields of social sciences and humanities.This work aims mainly at presenting a forgotten tale, written in Oran and found in Tlemcen, respectively former Spanish-Ottoman city and former capital of the central Maghreb. Moreover, the original version of the tale "The Genius of Aidour" is written in local Arabic dialect. To avoid its definitive loss, the author put forward the translation of the popular tale, accompanied by the presentation of the translator and his impressions, those of a soldier of French colonialism in Algeria.