IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(10, -11, D:1)
  5 stones
(10, 8, D:1)
  5 stones
  a +0 dagger of electrocution
(26, -15, D:1)
  5 stones
(26, 25, D:1)
  a +0 whip
(32, 1, D:1)
  a +0 dagger
(36, 15, D:1)
  a +0 ring mail
(38, 5, D:1)
  a +0 dagger
(41, -12, D:1)
  a +0 dagger
(43, -10, D:1)
  2 stones
(46, -20, D:1)
  a +0 club
(55, -6, D:1)
  a +0 dagger
(57, 7, D:1)
  a +0 club

Level 2 of the Dungeon
[Shop] Goc Ogol's Vocational Training
  a manual of Invocations (800 gold)
  a manual of Evocations (800 gold)
(0, 0, D:2)
  a +0 club
(1, -7, D:2)
  a stone
(2, 0, D:2)
  a +0 robe
  a +0 dagger
(2, 2, D:2)
  a +0 sling
(4, -13, D:2)
  a +1 trident of pain
(4, -11, D:2)
  a +0 dagger
  a goblin skeleton
(9, 1, D:2)
  a +0 whip
  3 stones
(12, -11, D:2)
  2 stones
(12, -7, D:2)
  a +0 robe
(16, -13, D:2)
  a +0 scale mail
(18, -8, D:2)
  a hobgoblin skeleton
(20, -7, D:2)
  a +0 club
  a goblin skeleton
(25, -16, D:2)
  a +0 war axe
(26, -11, D:2)
  a +0 whip
(36, -14, D:2)
  a +0 club
(45, 2, D:2)
  a +0 leather armour

Level 3 of the Dungeon
(0, 0, D:3)
  a scroll of amnesia
(1, -1, D:3)
  5 stones
(3, -5, D:3)
  10 gold pieces