IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 whip
  4 stones
(22, 28, D:1)
  a +0 club
  a goblin corpse (skeletalised by now)
(23, 32, D:1)
  a +0 war axe
(31, 27, D:1)
  a hobgoblin corpse (skeletalised by now)
(43, 6, D:1)
  2 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a rat corpse
(3, -2, D:2)
  a +0 whip
  a stone
(20, 5, D:2)
  a +0 short sword
(22, -1, D:2)
  a scroll of identify
(28, -5, D:2)
  a scroll of identify