The Egyptian Book of the dead by P. Le Page Renouf and Edouard Naville

12. _Eater of the Shadow._ The Demotic version interprets this of “his

own shadow.” I am rather inclined to interpret it by “the gnomons which were without shadows at noon,” and the “well of Syene” (Strabo, 817) at the Summer Solstice; when the Sun was vertical.