Bunyan, Pilgrim’s Progress :⁠—

“But now in this valley of Humiliation poor Christian was hard put to it; for he had gone but a little way before he spied a foul fiend coming over the field to meet him; his name is Apollyon. Then did Christian begin to be afraid, and to cast in his mind whether to go back or stand his ground.⁠ ⁠… Now at the end of this valley was another, called the valley of the Shadow of Death; and Christian must needs go through it, because the way to the Celestial City lay through the midst of it.”