The world as we know it has ended. Disease has killed all but a select few. Now, the ultimate battle between good and evil begins... it is the battle for your immortal soul.
(The sand is for the desert, which is where the final battle takes place. The crows' feather and skull represent the 'Walking Man'who is evil. He travels and spies on others in the shape of a crow. The light from within the book represents the light that shines from within each person, the light of all that is good, and it's power over evil.)
The Sabbath child Is blithe and good and gay.