Description:13 32 04 00 French Colony. 1922. The Maghreb. Three Westerners and an Arabic rider enter a cave with an enormous croissant drawn in the chalk. Sort of secret passage. Sort of passage, cave. He closes the door of the cave and the immense drawn Moslem croissant forms. Later, the group arrives in front of one a star drawn in the chalk on rock faces, signs, symbols. A series of figures are registered on points. The researcher, the explorer tries to understand.