IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 whip
  a kobold corpse (skeletalised by now)
(1, 12, D:1)
  a ball python corpse (skeletalised by now)
(8, -13, D:1)
  a +0 club
  a goblin skeleton
(8, 13, D:1)
  a rat corpse (skeletalised by now)
(10, 11, D:1)
  a bat corpse (skeletalised by now)
(17, -8, D:1)
  a +0 whip
  5 stones
(19, -2, D:1)
  a ball python skeleton
(22, -5, D:1)
  a +0 leather armour
(30, 1, D:1)
  a quokka skeleton
(31, 2, D:1)
  a +0 short sword
(32, -15, D:1)
  a frilled lizard skeleton
(37, 4, D:1)
  a +0 leather armour
(39, 22, D:1)
  a +0 ring mail
(40, 3, D:1)
  a +0 short sword
  2 stones
  a kobold corpse (skeletalised by now)
(42, -22, D:1)
  a jackal corpse (skeletalised by now)
(42, 7, D:1)
  a +0 ring mail
(46, -22, D:1)
  a +0 whip
(47, -19, D:1)
  a ball python corpse (skeletalised by now)
(51, -14, D:1)
  a +0 ring mail

Level 2 of the Dungeon
(0, 0, D:2)
  a frilled lizard skeleton
(2, -5, D:2)
  a +0 club
(2, 1, D:2)
  a hobgoblin skeleton
(5, 18, D:2)
  5 stones
  a bat skeleton
(10, 21, D:2)
  a +0 dagger
(25, 12, D:2)
  an adder corpse (skeletalised by now)
(30, 6, D:2)
  a +0 scale mail
(34, 11, D:2)
  a rat skeleton

Level 3 of the Dungeon
(0, 3, D:3)
  a quokka corpse
(2, 30, D:3)
  a scroll of blinking
(3, 27, D:3)
  2 potions of lignification
(11, 9, D:3)
  a +0 club
(20, 20, D:3)
  a +0 club
  a goblin corpse (skeletalised by now)
(23, 20, D:3)
  a +0 dagger
  a +0 ring mail
  an orc corpse (skeletalised by now)
(24, 19, D:3)
  a +0 flail
  a +0 hand axe
  a +0 ring mail
  a hobgoblin corpse (skeletalised by now)
  an orc corpse (skeletalised by now)
(26, 5, D:3)
  a +0 dagger
  3 poisoned darts
  a kobold corpse
(26, 6, D:3)
  a +0 robe
(29, 17, D:3)
  a quokka corpse (skeletalised by now)