Analysis

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 hand axe
(8, -20, D:1)
  a bat skeleton

Level 2 of the Dungeon
(0, 0, D:2)
  28 stones
(2, -1, D:2)
  a scroll of teleportation
(5, 9, D:2)
  a potion of haste