IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a hobgoblin skeleton
(1, 11, D:1)
  a rat skeleton
(16, 13, D:1)
  a rat skeleton
(19, 28, D:1)
  a +0 dagger
(31, -4, D:1)
  a +0 club
  a goblin skeleton
(32, -18, D:1)
  a jackal skeleton
(32, -12, D:1)
  a frilled lizard corpse (skeletalised by now)
(32, -3, D:1)
  2 stones
  a +0 short sword
(33, -19, D:1)
  a bat skeleton
(33, -13, D:1)
  a rat corpse (skeletalised by now)
(35, -20, D:1)
  4 stones
(36, -19, D:1)
  a +0 ring mail
(37, 27, D:1)
  a +0 robe
(38, 22, D:1)
  a rat skeleton
(39, 21, D:1)
  a +0 dagger
  a goblin skeleton
(45, -5, D:1)
  a hobgoblin skeleton
(48, 1, D:1)
  a +0 dagger
(48, 10, D:1)
  a jackal skeleton
(48, 11, D:1)
  a jackal skeleton
(48, 24, D:1)
  a +0 dagger
  a goblin skeleton
(49, -2, D:1)
  a stone
  a +0 club
  a kobold skeleton
(49, 8, D:1)
  a quokka skeleton
(54, 7, D:1)
  a +0 short sword
(55, 11, D:1)
  a hobgoblin skeleton

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 whip
(4, 34, D:2)
  a +0 short sword
(5, 17, D:2)
  a hobgoblin corpse (skeletalised by now)
(8, 32, D:2)
  a +0 mace
(10, 35, D:2)
  21 gold pieces
(12, 33, D:2)
  a bat corpse (skeletalised by now)
(13, -2, D:2)
  a hobgoblin skeleton
(14, -2, D:2)
  a ball python skeleton
(15, 1, D:2)
  a +0 whip
  a kobold skeleton
(22, 24, D:2)
  a +0 spear
(29, 25, D:2)
  a jackal skeleton
(31, 18, D:2)
  a jackal skeleton
(31, 19, D:2)
  a jackal skeleton
(31, 21, D:2)
  a ball python skeleton
  a bat skeleton
(33, 34, D:2)
  a +0 ring mail
(34, 27, D:2)
  a frilled lizard skeleton
(38, 17, D:2)
  4 boomerangs
(39, 0, D:2)
  a +0 short sword
(43, 10, D:2)
  an adder skeleton
(56, 8, D:2)
  5 stones
(57, 13, D:2)
  a +0 dagger

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 club
  a goblin corpse (skeletalised by now)
(4, 4, D:3)
  a ball python corpse (skeletalised by now)
(4, 8, D:3)
  a ball python corpse (skeletalised by now)

a sewer
(0, 0, Sewer)
  a rat corpse
(2, -11, Sewer)
  a ball python corpse
(4, -12, Sewer)
  a river rat corpse
(4, 9, Sewer)
  a frilled lizard corpse
(8, 10, Sewer)
  a rat corpse