The Benefits of Animals by Ibn Bakhtishu (MS M.500 fol. 6v): Cain killing Abe , 1297-1298 or 1299-1300, Illustrated manuscript, 355 x 280 mm. Kabil raises a boulder over his head in order to kill the sleeping Habil. In the branches of a tree, above Habil, can be seen a serpent and two ravens.