IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a hobgoblin corpse (skeletalised by now)
(11, -2, D:1)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(13, 0, D:1)
  a quokka corpse (skeletalised by now)
(20, 13, D:1)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(27, 0, D:1)
  6 stones
(30, -7, D:1)
  a +0 club
  a goblin skeleton
(31, -9, D:1)
  8 stones
(31, -7, D:1)
  a bat skeleton
(37, 6, D:1)
  a rat skeleton
(38, 17, D:1)
  a +0 mace
(39, 2, D:1)
  a +0 ring mail
(41, -23, D:1)
  a +0 club
  a goblin corpse (skeletalised by now)
(42, -23, D:1)
  a +0 mace
(45, 4, D:1)
  a ball python skeleton
(54, -16, D:1)
  a +0 leather armour
(56, -8, D:1)
  a +0 short sword

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 spear
(3, -23, D:2)
  a +0 flail
  a rat skeleton
(4, -23, D:2)
  a +0 spear
  a gnoll skeleton
(15, -30, D:2)
  6 stones
(16, -34, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(17, -27, D:2)
  a +0 spear of flaming
  a +0 trident
  a gnoll skeleton
(17, -5, D:2)
  a hobgoblin corpse (skeletalised by now)
(23, -15, D:2)
  a +0 whip
(24, -7, D:2)
  a +0 whip
  2 stones
  a kobold corpse (skeletalised by now)
(29, -10, D:2)
  a +0 dagger
(31, -10, D:2)
  a +0 club
(40, -12, D:2)
  an adder skeleton
(43, -23, D:2)
  a +0 hand axe

Level 3 of the Dungeon
(0, 0, D:3)
  a ribbon worm corpse
(0, 2, D:3)
  a +0 flail
  a +0 leather armour
(1, 16, D:3)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(1, 34, D:3)
  a +0 leather armour
(5, -3, D:3)
  a +0 longbow
(12, 1, D:3)
  a +0 ring mail