IndexError

Level 1 of the Dungeon
(10, 21, D:1)
  a +0 robe
(11, -10, D:1)
  4 stones
  a +0 dagger
(12, 8, D:1)
  a hobgoblin skeleton
(19, 18, D:1)
  a +0 short sword
(22, -2, D:1)
  a +0 dagger
  2 stones
(23, -1, D:1)
  a +0 club
(24, -1, D:1)
  a +0 dagger
  a +0 club
  a goblin corpse (skeletalised by now)
(28, -8, D:1)
  6 stones
(30, 27, D:1)
  a bat skeleton
(36, 20, D:1)
  a goblin corpse (skeletalised by now)
(40, -10, D:1)
  a rat corpse (skeletalised by now)
(42, 25, D:1)
  a +0 dagger
(53, 17, D:1)
  a bat skeleton
(60, 4, D:1)
  a stone
(60, 11, D:1)
  a +0 club
  5 stones
(62, -17, D:1)
  a ball python corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a rat corpse (skeletalised by now)
(3, 23, D:2)
  a +0 club
(6, -5, D:2)
  a +0 club
(6, 2, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(7, 28, D:2)
  a +0 mace
  5 stones
(9, 14, D:2)
  2 stones
(13, 33, D:2)
  a frilled lizard corpse (skeletalised by now)
(19, 17, D:2)
  a jackal skeleton
(20, 20, D:2)
  a jackal skeleton
(23, 19, D:2)
  a +0 dagger
(23, 30, D:2)
  3 boomerangs
(27, 24, D:2)
  a stone
  a +0 whip
(33, 24, D:2)
  a rat skeleton
(34, 3, D:2)
  a ball python skeleton
(38, 5, D:2)
  a +0 dagger
(44, 11, D:2)
  a +0 chain mail
(45, 13, D:2)
  a rat skeleton

Level 3 of the Dungeon
(7, -6, D:3)
  a hobgoblin skeleton
(14, 20, D:3)
  2 stones
  a +0 short sword
  a kobold skeleton
(14, 21, D:3)
  8 poisoned darts
  a +0 dagger
(15, 17, D:3)
  a +0 club
  a kobold skeleton
(15, 33, D:3)
  6 poisoned darts
(16, -4, D:3)
  a hobgoblin skeleton
(18, 17, D:3)
  a +0 club
(20, 28, D:3)
  a rat skeleton
  an adder skeleton
(21, 25, D:3)
  an adder skeleton
(27, -4, D:3)
  a +0 scale mail
  a +0 hand axe
(30, 22, D:3)
  a bat skeleton
(32, 5, D:3)
  a frilled lizard skeleton
(35, -4, D:3)
  5 stones
(36, -6, D:3)
  a quokka skeleton
(38, -4, D:3)
  a +0 robe
(38, 4, D:3)
  4 stones
(46, 28, D:3)
  a +0 dagger
  a stone
  a kobold skeleton
(47, 30, D:3)
  a +0 robe
(49, 13, D:3)
  a +0 robe
(54, 34, D:3)
  a +0 club
  a +0 leather armour

Level 4 of the Dungeon
(11, 2, D:4)
  a +0 dagger
(17, 13, D:4)
  a +0 club
  a goblin corpse (skeletalised by now)
(18, 23, D:4)
  a +0 ring mail
(21, 12, D:4)
  a +0 scale mail
(28, -2, D:4)
  a ribbon worm corpse
(31, 19, D:4)
  a +0 whip
(38, 17, D:4)
  a +0 dagger