IndexError

Level 1 of the Dungeon
(0, 23, D:1)
  4 stones
(1, -17, D:1)
  2 stones
(3, -8, D:1)
  a +0 dagger
(6, -8, D:1)
  a quokka skeleton
(7, 9, D:1)
  a bat skeleton
(10, 6, D:1)
  a bat skeleton
(20, -25, D:1)
  a +0 club
(20, -4, D:1)
  a scarf of repulsion
(25, -7, D:1)
  a +0 pair of boots
(30, -25, D:1)
  a hobgoblin skeleton
(31, -6, D:1)
  a ball python corpse (skeletalised by now)
(34, -27, D:1)
  5 stones
  a +0 short sword
  a kobold skeleton
(36, -26, D:1)
  a ball python skeleton
(44, -26, D:1)
  6 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 robe
(1, 9, D:2)
  3 stones
(1, 15, D:2)
  6 stones
(4, -14, D:2)
  the +0 ring mail of the Engineer {Str+5 Int+3 Dex-4}
    Str+5:      It affects your strength (+5).
    Int+3:      It affects your intelligence (+3).
    Dex-4:      It affects your dexterity (-4).
(13, 7, D:2)
  a stone
  a +0 whip
  a kobold skeleton
(17, -18, D:2)
  a +0 robe
(19, -13, D:2)
  a ball python corpse (skeletalised by now)
(23, -29, D:2)
  4 poisoned darts
(25, 17, D:2)
  a hobgoblin skeleton
(28, -7, D:2)
  a +0 club
  a kobold skeleton
(28, 6, D:2)
  a +0 leather armour
(29, -10, D:2)
  a +0 club
  a kobold skeleton
(31, -2, D:2)
  a +0 dagger
(37, 6, D:2)
  an adder skeleton
(39, -22, D:2)
  a +0 dagger
(40, -2, D:2)
  a +0 dagger
  5 stones
  a kobold corpse (skeletalised by now)
(42, -22, D:2)
  9 stones
(42, -2, D:2)
  9 stones
(42, 6, D:2)
  6 stones
(50, -10, D:2)
  2 boomerangs
(50, -7, D:2)
  a +0 robe

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 hammer
(1, -12, D:3)
  a +0 dagger of draining
  a +0 cloak
(7, -6, D:3)
  a +0 falchion
(9, -10, D:3)
  a +0 club
  a goblin skeleton
(17, -15, D:3)
  a +0 leather armour
  a +0 falchion
(18, -15, D:3)
  a rat skeleton
(21, 1, D:3)
  a +0 club
  a +0 leather armour
  a +0 dagger
  a rat skeleton
  a goblin skeleton
  the goblin skeleton of Ijyb
(22, -37, D:3)
  a +0 dagger
(22, -4, D:3)
  3 stones
  a +0 dagger
(23, 5, D:3)
  a +0 whip
(26, -22, D:3)
  a +0 leather armour
(27, 12, D:3)
  a rat skeleton
(31, 19, D:3)
  a hobgoblin corpse (skeletalised by now)
(33, -18, D:3)
  2 stones
(36, -11, D:3)
  a +0 leather armour
(37, -23, D:3)
  a frilled lizard skeleton
(38, -32, D:3)
  a ball python skeleton
(39, -15, D:3)
  a bat skeleton
(42, -2, D:3)
  a +0 robe
  a +0 dagger
(44, -6, D:3)
  a +0 dagger
  a goblin skeleton
(50, -13, D:3)
  a ball python corpse (skeletalised by now)
(55, -7, D:3)
  a +0 trident
(57, -11, D:3)
  a +0 hand axe
(57, -9, D:3)
  a +0 short sword
  an orc corpse (skeletalised by now)
(59, -17, D:3)
  a +0 mace
  an orc corpse (skeletalised by now)

Level 4 of the Dungeon
(14, 1, D:4)
  a +0 flail
(20, -3, D:4)
  a +0 club
(21, 9, D:4)
  an adder skeleton
(26, -2, D:4)
  a +0 whip
  a stone
(31, -13, D:4)
  a +0 club
  4 stones
(34, 18, D:4)
  the +4 ring mail "Gilokk" {rC- Str+3 Dex+4}
    rC-:        It makes you vulnerable to cold.
    Str+3:      It affects your strength (+3).
    Dex+4:      It affects your dexterity (+4).
(35, 9, D:4)
  6 boomerangs
(44, 7, D:4)
  a +0 robe
(57, 0, D:4)
  a +0 sling