IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  3 poisoned darts
(2, 21, D:1)
  5 stones
(5, 31, D:1)
  a +2 helmet
(9, 18, D:1)
  a +0 robe
(38, 8, D:1)
  a +0 dagger
(38, 23, D:1)
  a +0 ring mail

Level 2 of the Dungeon
(0, 0, D:2)
  3 stones
(8, -21, D:2)
  a +0 whip
(12, -36, D:2)
  a +0 club
(18, -1, D:2)
  a +0 whip
(34, 5, D:2)
  a +0 short sword
  3 stones
(38, -27, D:2)
  a +0 dagger
(38, -11, D:2)
  a +0 club
(46, -8, D:2)
  a +0 club
(47, -41, D:2)
  a +0 dagger
(48, -39, D:2)
  a +0 dagger
(56, -32, D:2)
  a +0 short sword
  2 stones

Level 3 of the Dungeon
(0, 0, D:3)
  a +2 dagger of venom
(8, -38, D:3)
  a +0 club
(14, -43, D:3)
  2 potions of magic
(15, -43, D:3)
  13 gold pieces
(18, -46, D:3)
  a +0 club
(19, -9, D:3)
  a +0 ring mail
  a +0 hand axe
(22, -9, D:3)
  5 stones
  a +0 whip
(38, 0, D:3)
  a +0 falchion
  a +0 leather armour
(43, -43, D:3)
  a +0 dagger
(54, -53, D:3)
  a +0 dagger
  a +0 sling
(57, -12, D:3)
  a +0 club
(57, -11, D:3)
  a +0 spear
(57, -10, D:3)
  a +0 club

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 club
  a gnoll corpse
(0, 1, D:4)
  a +0 halberd
(2, -11, D:4)
  a +0 heavy flail (still there?)
  a +0 robe (still there?)
  a +0 club (still there?)
  16 gold pieces (still there?)
  a gnoll corpse (still there?)
  a gnoll corpse (still there?)
(4, -11, D:4)
  a +0 halberd
(6, -13, D:4)
  a +0 long sword
(8, -12, D:4)
  a +0 hand axe
(10, -21, D:4)
  a scroll of identify