Descartes

Level 3 of the Dungeon
[Shop] Wowk's Magic Scroll Boutique
  (Shop contents are unknown)
(0, 0, D:3)
  18 bolts
(2, 2, D:3)
  3 gold pieces
(6, 3, D:3)
  a scroll of teleportation
(11, 3, D:3)
  20 arrows

Level 4 of the Dungeon
(0, 0, D:4)
  17 bolts