IndexError

Level 1 of the Dungeon
(9, 3, D:1)
  a +0 ring mail
(12, 26, D:1)
  6 poisoned darts
(20, 3, D:1)
  a +0 whip
(20, 11, D:1)
  a +0 ring mail
  a +0 dagger
(22, -7, D:1)
  a hobgoblin corpse (skeletalised by now)
(24, -7, D:1)
  a +0 club
  a jackal corpse (skeletalised by now)
(28, 4, D:1)
  a +0 ring mail
(30, -5, D:1)
  a frilled lizard skeleton
(32, 12, D:1)
  a +0 dagger
(33, -8, D:1)
  5 stones
(34, 10, D:1)
  7 stones
(38, -3, D:1)
  a +0 rapier
(42, -4, D:1)
  a +0 ring mail
(45, 15, D:1)
  a bat skeleton
  a rat skeleton
(46, 1, D:1)
  a hobgoblin skeleton
(46, 21, D:1)
  a +0 ring mail
(49, -2, D:1)
  a bat skeleton
(52, 26, D:1)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(54, -2, D:1)
  a +0 dagger
  a kobold skeleton

Level 2 of the Dungeon
[Shop] Errae's Book Boutique
  a book of Annihilations (720 gold)
  a book of Blasting (504 gold)
  a There-And-Back Book (432 gold)
  a book of Spatial Translocations (216 gold)
  a book of Minor Magic (192 gold)
  a book of Minor Magic (192 gold)
  a Treatise on Traps (360 gold)
  a book of Fire (384 gold)
  a book of Geomancy (240 gold)
(0, 0, D:2)
  a +0 club
(5, -18, D:2)
  a +0 dagger
(6, -13, D:2)
  the +2 leather armour "Rolaek" {Int+3}
    Int+3:      It affects your intelligence (+3).
(9, -25, D:2)
  a +0 club
(10, -10, D:2)
  a +0 robe
  a +0 club
(14, 4, D:2)
  3 stones
  a kobold skeleton
(16, -10, D:2)
  a +0 war axe
(16, 5, D:2)
  a +0 dagger
(22, -2, D:2)
  a quill talisman
(28, -34, D:2)
  a +0 dagger
(31, -34, D:2)
  a quokka skeleton
(32, -35, D:2)
  a ball python skeleton
(35, -32, D:2)
  6 curare-tipped darts
(42, -44, D:2)
  4 boomerangs
(44, -22, D:2)
  a +0 club
(55, -38, D:2)
  a +0 leather armour

Level 3 of the Dungeon
[Shop] Egyof's Antique Armour Shoppe
  (Shop contents are unknown)
(2, -7, D:3)
  a bat corpse (skeletalised by now)
(3, -10, D:3)
  a +1 dagger of draining
  5 stones
  a kobold corpse (skeletalised by now)
(7, -27, D:3)
  a +0 club
  a goblin corpse
(9, 21, D:3)
  17 gold pieces
(17, -25, D:3)
  7 stones
(17, 3, D:3)
  a +0 dagger
(21, -8, D:3)
  a +0 club