IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  4 stones
(0, 4, D:1)
  a +0 plate armour
(3, 17, D:1)
  a ball python corpse (skeletalised by now)
(3, 21, D:1)
  a bat corpse (skeletalised by now)
(3, 31, D:1)
  a +0 short sword
(12, 16, D:1)
  a +0 chain mail
(17, -15, D:1)
  a +0 club
(18, 28, D:1)
  a +0 club
(44, 2, D:1)
  a +0 helmet
(48, -18, D:1)
  a bat corpse (skeletalised by now)
(55, -8, D:1)
  a ball python skeleton

Level 2 of the Dungeon
(0, 0, D:2)
  5 poisoned darts
(2, 0, D:2)
  a ball python corpse (skeletalised by now)
(13, -18, D:2)
  a flux talisman
(14, -22, D:2)
  an adder corpse
(37, -34, D:2)
  a +0 club
  a goblin corpse (skeletalised by now)
(39, -50, D:2)
  a +0 robe
(39, -11, D:2)
  a +0 helmet
(46, -6, D:2)
  a hobgoblin skeleton
(58, -17, D:2)
  a +0 club
  a stone

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 dagger
  a goblin corpse