IndexError

Level 1 of the Dungeon
(6, 0, D:1)
  a +0 falchion
(7, -25, D:1)
  3 stones
  a +0 vampiric whip {!w}
(7, -6, D:1)
  a +2 dagger of distortion {!w}
(28, -24, D:1)
  a +0 dagger
(33, 1, D:1)
  a +0 leather armour
(34, -37, D:1)
  a +0 mace
(38, -28, D:1)
  a +0 mace
(54, -25, D:1)
  5 stones
(57, -18, D:1)
  a +0 robe
(59, -31, D:1)
  a +0 leather armour
(60, -5, D:1)
  a +0 scale mail
(62, -5, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  6 boomerangs
(11, -2, D:2)
  a +0 whip
  4 stones
(13, -5, D:2)
  a +0 dagger
(15, -2, D:2)
  a +0 club
(22, 32, D:2)
  a +0 robe

Level 3 of the Dungeon
(3, 1, D:3)
  a +0 hammer
(14, 9, D:3)
  7 stones
(17, 23, D:3)
  9 stones
(27, 5, D:3)
  a +0 leather armour
(32, 10, D:3)
  a +0 club
  a +0 leather armour
(33, 11, D:3)
  a +0 hand axe
(34, 35, D:3)
  a +0 mace
(34, 46, D:3)
  a +0 short sword
(43, 44, D:3)
  a +0 hand axe
(49, 49, D:3)
  a +0 mace
(52, 4, D:3)
  a +0 shortbow
(52, 7, D:3)
  a stone
(52, 40, D:3)
  a +0 whip
(55, 42, D:3)
  4 stones

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 robe
(3, 11, D:4)
  a Trismegistus Codex
(3, 32, D:4)
  a +0 war axe
(4, 17, D:4)
  a wand of paralysis (11)
(7, 12, D:4)
  a scroll of summoning
(14, 17, D:4)
  a +0 trident
(15, 16, D:4)
  14 gold pieces
(15, 18, D:4)
  9 gold pieces
(21, 14, D:4)
  a +0 short sword
  2 poisoned darts
(28, 7, D:4)
  a +1 whip of electrocution
  a +0 ring mail
  an orc corpse (skeletalised by now)
(36, 26, D:4)
  a +0 scale mail