IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  19 arrows
(0, 8, D:1)
  a +0 leather armour
(0, 18, D:1)
  a +0 dagger
(4, 13, D:1)
  a +0 club
(6, -6, D:1)
  a +0 short sword
(8, -9, D:1)
  20 arrows
(15, -10, D:1)
  a hobgoblin corpse (skeletalised by now)
(16, -10, D:1)
  a rat corpse (skeletalised by now)
(17, 1, D:1)
  21 stones
(19, 7, D:1)
  a +0 hand axe
(35, -13, D:1)
  a +0 ring mail
(45, -9, D:1)
  a +0 hand axe
(47, -14, D:1)
  a +0 spear
(47, 0, D:1)
  24 stones
(47, 1, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 club (still there?)
  a goblin corpse (still there?)
(1, 0, D:2)
  a +0 dagger (still there?)
  a goblin corpse (still there?)
(2, 0, D:2)
  a +0 club (still there?)
  a +0 dagger (still there?)
  a +0 club (still there?)
  a goblin corpse (still there?)
  a goblin corpse (still there?)
  a goblin corpse (still there?)
(3, -7, D:2)
  12 bolts