IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
(13, 6, D:1)
  a +0 mace
(13, 10, D:1)
  a hobgoblin skeleton
(18, -5, D:1)
  4 stones
  a +0 dagger
  a kobold skeleton
(18, -2, D:1)
  a bat skeleton
(18, 3, D:1)
  a +0 leather armour
(18, 16, D:1)
  a +0 robe
(18, 19, D:1)
  2 stones
  a +0 club
  a kobold skeleton
(18, 22, D:1)
  a rat skeleton
(22, -5, D:1)
  a +0 club
(22, -4, D:1)
  a rat skeleton
(23, 22, D:1)
  a -2 sling {Eiko}
(24, 8, D:1)
  a +0 ring mail
(25, 16, D:1)
  an orb of energy
(30, 22, D:1)
  a +0 short sword
  3 stones
(33, 24, D:1)
  2 stones
(34, -12, D:1)
  a ball python corpse (skeletalised by now)
(42, -6, D:1)
  a rat skeleton
(48, 27, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 short sword
  a +0 leather armour
  an orc skeleton
(0, 1, D:2)
  a +0 hand axe
  an orc skeleton
(0, 2, D:2)
  a +0 flail
  a +0 leather armour
  an orc skeleton
(2, 2, D:2)
  a +0 ring mail
(3, 2, D:2)
  a +0 short sword
(4, -12, D:2)
  a bat skeleton
(8, 0, D:2)
  a +0 dagger
(9, -25, D:2)
  a +0 mace
(10, 25, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(12, -13, D:2)
  a ball python skeleton
(15, -36, D:2)
  a +0 hand axe
(17, -21, D:2)
  a +0 robe
(18, -4, D:2)
  an adder skeleton
(25, -14, D:2)
  a ring of see invisible {sInv, !d}
(26, 14, D:2)
  6 stones
(33, -11, D:2)
  a +0 spear
  a +0 spear
  a +0 halberd
  a gnoll skeleton
(34, -11, D:2)
  a +0 whip
  a gnoll skeleton
(40, -9, D:2)
  a +0 dagger

Level 3 of the Dungeon
(0, 0, D:3)
  a frilled lizard corpse (skeletalised by now)
(9, -5, D:3)
  a stone
(11, -16, D:3)
  the felid skeleton of Natasha
(13, 22, D:3)
  a +0 club
(14, -2, D:3)
  the felid skeleton of Natasha
(19, 25, D:3)
  a +0 club
  a goblin corpse (skeletalised by now)
(25, -14, D:3)
  a +0 long sword
(30, 32, D:3)
  a +0 falchion
  a bat corpse (skeletalised by now)
(31, 10, D:3)
  5 stones
(33, 6, D:3)
  5 stones
(33, 17, D:3)
  a hobgoblin corpse (skeletalised by now)
(35, -9, D:3)
  a +0 falchion
(39, 29, D:3)
  a bat corpse (skeletalised by now)
(45, -7, D:3)
  a potion of mutation
(52, -3, D:3)
  3 stones
(57, -10, D:3)
  an amulet of the acrobat

Level 4 of the Dungeon
(0, 0, D:4)
  14 gold pieces
(6, -5, D:4)
  20 gold pieces
(14, 7, D:4)
  a +0 trident
(16, 5, D:4)
  a +0 giant club
(28, -3, D:4)
  a +0 ring mail
(33, 0, D:4)
  a +0 short sword
  a +0 leather armour
(42, 19, D:4)
  a +0 robe