IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
(9, -10, D:1)
  5 stones
(13, 23, D:1)
  a +0 club
(31, 19, D:1)
  4 poisoned darts
(34, -6, D:1)
  a +0 hand axe
(34, 18, D:1)
  a +0 ring mail

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
(16, 13, D:2)
  a +0 ring mail
(17, 17, D:2)
  a +0 club
(17, 37, D:2)
  a +0 leather armour
(31, 15, D:2)
  a +0 club
(34, 6, D:2)
  a +0 dagger
(41, 8, D:2)
  a +0 short sword
  3 stones

Level 3 of the Dungeon
(0, 24, D:3)
  13 gold pieces
(1, 23, D:3)
  4 stones
(2, 22, D:3)
  11 gold pieces
(8, 12, D:3)
  a +0 short sword
  7 poisoned darts
(10, 30, D:3)
  a +0 dagger
  2 stones
(12, 32, D:3)
  a +0 club
  a +0 dagger
(16, 27, D:3)
  a +0 mace
(23, -23, D:3)
  a +0 club
(24, -16, D:3)
  a +0 scale mail
(26, -15, D:3)
  a +0 hand axe
(29, -11, D:3)
  a +2 dagger of protection
  a +0 ring mail
  a +0 short sword
  a +0 chain mail
  a +0 flail
(29, -10, D:3)
  a +0 hand axe
(31, -14, D:3)
  a rat skeleton
(31, 19, D:3)
  a +0 halberd
  a wand of quicksilver (8)
  a gnoll corpse
(31, 21, D:3)
  a +0 spear
(32, 13, D:3)
  6 stones
(34, 4, D:3)
  a +0 club
(38, -15, D:3)
  a frilled lizard corpse (skeletalised by now)
(38, 10, D:3)
  a +0 sling
(39, 21, D:3)
  a ring of protection from fire
(39, 22, D:3)
  a manual of Evocations
(39, 23, D:3)
  13 gold pieces
(41, 21, D:3)
  14 gold pieces
(41, 22, D:3)
  10 gold pieces
(41, 23, D:3)
  7 gold pieces
(42, 25, D:3)
  10 gold pieces
(44, 26, D:3)
  11 gold pieces

Level 4 of the Dungeon
(0, 0, D:4)
  an adder corpse
(2, -3, D:4)
  a +0 long sword
(3, -1, D:4)
  a +0 robe
(4, -2, D:4)
  a scroll of identify