IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a rat corpse (skeletalised by now)
(6, -24, D:1)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(9, -18, D:1)
  a +0 dagger
(10, -15, D:1)
  a +0 dagger
  2 stones
(11, 8, D:1)
  a +0 leather armour
(12, 5, D:1)
  a +0 long sword
(13, 7, D:1)
  a bat corpse (skeletalised by now)
(16, -35, D:1)
  a ball python corpse (skeletalised by now)
(17, 0, D:1)
  a rat skeleton
(17, 5, D:1)
  a ball python corpse (skeletalised by now)
(18, -36, D:1)
  a ball python corpse (skeletalised by now)
(18, 1, D:1)
  a goblin skeleton
(23, -31, D:1)
  a +0 robe
(27, -47, D:1)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(30, -28, D:1)
  a hobgoblin skeleton
(32, -29, D:1)
  a frilled lizard skeleton
(36, -9, D:1)
  a +0 dagger
(36, -2, D:1)
  a ball python corpse (skeletalised by now)
(46, -15, D:1)
  a +0 scale mail
(54, -28, D:1)
  2 potions of moonshine
(54, -6, D:1)
  a +0 club
(56, -27, D:1)
  a bat skeleton
(58, -25, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a frilled lizard corpse
(1, 4, D:2)
  a +0 dagger
(4, -2, D:2)
  a +0 robe
(6, -18, D:2)
  an inkwell talisman
(9, -13, D:2)
  a bat skeleton
(9, 10, D:2)
  an adder corpse
(10, -14, D:2)
  a rat skeleton
(12, -15, D:2)
  a ball python skeleton
(15, -16, D:2)
  a +0 chain mail
(17, -2, D:2)
  a quokka skeleton
(22, -4, D:2)
  5 poisoned darts
(25, -18, D:2)
  a +0 club
(28, -24, D:2)
  a +0 ring mail
(29, -8, D:2)
  a +0 dagger
(30, -1, D:2)
  a +0 trident
(42, -14, D:2)
  a hobgoblin corpse (skeletalised by now)
(42, -13, D:2)
  a ball python corpse (skeletalised by now)
(42, -1, D:2)
  a frilled lizard corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  a scroll of torment
(3, -5, D:3)
  a +0 club
  a +0 scale mail
(10, -7, D:3)
  10 gold pieces