IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(0, 11, D:1)
  a jackal skeleton
(3, 5, D:1)
  2 boomerangs
(8, 5, D:1)
  a quill talisman
(8, 27, D:1)
  a hobgoblin corpse (skeletalised by now)
(8, 29, D:1)
  a +0 club
  a +0 club
(17, -1, D:1)
  a jackal skeleton
(17, 1, D:1)
  a jackal skeleton
(22, 32, D:1)
  a +0 sling
(25, 3, D:1)
  a jackal corpse (skeletalised by now)
(26, -6, D:1)
  a +0 hand axe
(28, 9, D:1)
  a +0 club
  a goblin skeleton
(30, 28, D:1)
  a frilled lizard skeleton
(32, 2, D:1)
  a bat skeleton
(33, -6, D:1)
  a rat corpse (skeletalised by now)
(35, -4, D:1)
  a hobgoblin corpse (skeletalised by now)
(35, 35, D:1)
  a +0 short sword
(40, -7, D:1)
  a +0 ring mail
(41, 14, D:1)
  a bat skeleton
(41, 15, D:1)
  a jackal skeleton
(44, 24, D:1)
  a rat skeleton
(51, 22, D:1)
  a +0 robe

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 club
  a ball python skeleton
(1, 11, D:2)
  an adder skeleton
(2, 0, D:2)
  a hobgoblin skeleton
(3, 1, D:2)
  a +2 spear of flaming
  a +0 spear
  a gnoll skeleton
(7, 28, D:2)
  a +0 flail
(10, 18, D:2)
  a quokka skeleton
(12, 28, D:2)
  a +0 whip
  a +0 ring mail
  a +0 short sword
  a +0 chain mail
  an orc corpse
(17, 27, D:2)
  a +0 club
  a goblin skeleton
(19, -9, D:2)
  a +0 short sword
  a kobold skeleton
(23, 18, D:2)
  a +0 leather armour
(32, 0, D:2)
  a +0 dagger
(33, -8, D:2)
  a +0 leather armour
(54, -10, D:2)
  an adder corpse (skeletalised by now)

Level 3 of the Dungeon
(3, 7, D:3)
  a +0 spear
(19, 24, D:3)
  6 poisoned darts
(22, 28, D:3)
  a frilled lizard corpse