IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a hobgoblin skeleton
(1, 2, D:1)
  a +0 club
(9, 11, D:1)
  a +0 leather armour
(17, 25, D:1)
  a +0 short sword
  a stone
  a kobold corpse (skeletalised by now)
(18, 16, D:1)
  a +0 robe
  a hobgoblin skeleton
(24, -4, D:1)
  a +0 dagger
  a kobold skeleton
(31, 30, D:1)
  a +0 whip
  2 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 ring mail
(4, -25, D:2)
  a ball python skeleton
(5, -26, D:2)
  a jackal skeleton
(5, -10, D:2)
  a rat skeleton
(6, -25, D:2)
  a +0 leather armour
(16, 7, D:2)
  a +0 scale mail
(19, 3, D:2)
  5 stones
(23, -8, D:2)
  a jackal skeleton
  a jackal skeleton
(32, -12, D:2)
  3 stones
(34, -15, D:2)
  2 stones
(49, -27, D:2)
  a jackal skeleton
  a jackal skeleton
  a jackal skeleton
(49, -26, D:2)
  a jackal skeleton
(51, -5, D:2)
  a hobgoblin corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 ring mail
  a +3 dagger
  a +0 scale mail
  a +0 short sword
  a +0 robe
  a +0 dagger
  a +0 ring mail
  a +0 dagger
  a +0 hand axe
  an orc skeleton
  an orc skeleton
(1, 34, D:3)
  a bat corpse (skeletalised by now)
(3, -20, D:3)
  a +0 mace
(6, 5, D:3)
  a +0 falchion
(10, 3, D:3)
  a +0 dagger
(15, 7, D:3)
  a +0 hand axe
(19, 17, D:3)
  a +0 dagger
  a stone
(20, 16, D:3)
  a +0 dagger
  a kobold corpse (skeletalised by now)
(26, -17, D:3)
  a +0 club
(30, 0, D:3)
  a ball python skeleton
(41, -15, D:3)
  a +0 dagger
(57, 0, D:3)
  a hobgoblin corpse (skeletalised by now)

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 club
(7, -5, D:4)
  a +0 short sword
  a +0 ring mail
(8, -5, D:4)
  a +0 hand axe
  a +0 leather armour
  a +0 dagger
  a +0 robe
  an orc corpse
  an orc corpse
(10, 2, D:4)
  a +0 dagger
(10, 32, D:4)
  a throwing net
(12, -17, D:4)
  4 stones
(14, 15, D:4)
  a throwing net
(14, 32, D:4)
  a potion of haste
(16, -2, D:4)
  a +0 leather armour
(20, -9, D:4)
  a +0 falchion
(22, 15, D:4)
  a +0 flail
(24, 22, D:4)
  a potion of curing
(25, 8, D:4)
  a quokka corpse (skeletalised by now)
(25, 12, D:4)
  a +0 dagger
(26, -9, D:4)
  a +0 robe
(30, -4, D:4)
  a +0 hand axe
(30, 7, D:4)
  a ball python corpse (skeletalised by now)