IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
(5, 26, D:1)
  2 stones
(7, 6, D:1)
  a +0 robe
(22, 7, D:1)
  a +0 dagger
(31, -8, D:1)
  a +0 dagger
(32, -9, D:1)
  a +0 dagger
(32, 1, D:1)
  3 stones
(40, 22, D:1)
  a stone

Level 2 of the Dungeon
(0, 0, D:2)
  3 stones
(1, -3, D:2)
  a +0 whip
  a stone
(2, 0, D:2)
  a +0 club
(11, -25, D:2)
  a +0 short sword
  4 stones
(19, 6, D:2)
  2 stones
(29, 11, D:2)
  a +0 short sword
  2 stones
(29, 13, D:2)
  a +1 barding
(38, -3, D:2)
  2 poisoned darts
(48, -8, D:2)
  a +0 club
(49, -21, D:2)
  5 stones

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 dagger
(5, -21, D:3)
  a +0 dagger
(11, -18, D:3)
  a +0 dagger
(13, -16, D:3)
  a +0 whip
(16, -26, D:3)
  a +0 whip
(18, -6, D:3)
  9 stones
(21, -10, D:3)
  5 stones
(24, -3, D:3)
  a +0 whip
(28, -23, D:3)
  a +0 short sword of holy wrath
(33, -25, D:3)
  8 poisoned darts
  a +0 club
(40, 13, D:3)
  a +0 short sword
(42, -18, D:3)
  6 stones
(48, -17, D:3)
  a +2 hand axe of distortion {!w}
(60, -13, D:3)
  a +0 whip
(61, -10, D:3)
  a +0 robe

Level 4 of the Dungeon
[Shop] Qimizu's Antique Armour Boutique
  (Shop contents are unknown)
(0, 2, D:4)
  a frilled lizard corpse (skeletalised by now)
(1, -4, D:4)
  a +0 short sword
  a +0 dagger
  a stone
  a kobold corpse (skeletalised by now)
(1, 1, D:4)
  a +0 short sword
  a frilled lizard corpse (skeletalised by now)
  a kobold corpse (skeletalised by now)
(2, -5, D:4)
  a +0 dagger
  2 stones
  a rat corpse (skeletalised by now)
(3, -40, D:4)
  a +0 robe
(4, -5, D:4)
  a +0 dagger
  a kobold corpse (skeletalised by now)
(7, -40, D:4)
  7 stones
(11, -22, D:4)
  3 stones
(14, -29, D:4)
  a +0 whip
(28, -23, D:4)
  3 gold pieces
(43, -6, D:4)
  a +0 ring mail
  a +0 whip
(52, -35, D:4)
  a +0 club