IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 short sword
(9, -24, D:1)
  a +0 club
(10, -23, D:1)
  5 stones
  a +0 dagger
(14, -22, D:1)
  5 stones
(14, -5, D:1)
  6 stones
(21, -25, D:1)
  2 stones
(21, -17, D:1)
  a rat skeleton
(23, -15, D:1)
  a ball python skeleton
(25, -27, D:1)
  a +0 robe
(25, -9, D:1)
  a +0 club
(38, -17, D:1)
  a hobgoblin skeleton
(39, -11, D:1)
  a +0 sling
(40, -5, D:1)
  a +0 hand axe
(42, -5, D:1)
  a hobgoblin skeleton
(44, -3, D:1)
  a hobgoblin skeleton
(46, -4, D:1)
  a +0 mace
  a +0 dagger
(51, -9, D:1)
  a +0 whip

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 robe
(2, 21, D:2)
  a jackal corpse (skeletalised by now)
(21, 6, D:2)
  5 stones
(27, 29, D:2)
  a +0 robe
  a +0 dagger
  an orc corpse (skeletalised by now)
(33, 12, D:2)
  a bat skeleton
(43, 19, D:2)
  a bat corpse (skeletalised by now)
(44, 5, D:2)
  a rat skeleton
(45, 26, D:2)
  a ball python corpse (skeletalised by now)

Level 3 of the Dungeon
(12, -8, D:3)
  an amulet of guardian spirit
(22, 31, D:3)
  a +0 dagger
(24, 22, D:3)
  a ball python corpse (skeletalised by now)
(25, 22, D:3)
  a +0 sling
(28, 33, D:3)
  6 stones
(31, -13, D:3)
  4 stones
  a +0 short sword
(31, 29, D:3)
  2 boomerangs
  a +0 hand axe
  an orc skeleton
(32, -2, D:3)
  3 large rocks {!d}
(32, 28, D:3)
  a hobgoblin skeleton
(33, -1, D:3)
  a +0 club
  a goblin skeleton
(34, 28, D:3)
  a +0 club
(36, 27, D:3)
  a +0 leather armour
  a +0 short sword
(36, 29, D:3)
  a +0 ring mail
  a +0 flail
(40, -5, D:3)
  a ball python skeleton
(40, 29, D:3)
  a ball python skeleton
(53, -6, D:3)
  a +0 flail
(53, -5, D:3)
  a +0 leather armour
  a +0 club
(55, -14, D:3)
  a +0 scale mail
(56, -16, D:3)
  a +0 leather armour
  a +0 dagger
  an orc skeleton
(59, 26, D:3)
  a +0 dagger

Level 4 of the Dungeon
(0, 0, D:4)
  a hound corpse
(3, -12, D:4)
  a hobgoblin corpse
(5, -6, D:4)
  4 stones
(18, 19, D:4)
  a +0 ring mail
(32, -10, D:4)
  a +0 dagger
  a +0 robe
(32, 33, D:4)
  4 stones
(41, 19, D:4)
  a +0 falchion
(50, 10, D:4)
  a stone
  a +0 club
  a kobold skeleton
(57, -9, D:4)
  a +0 short sword