IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a hobgoblin skeleton
  a jackal skeleton
  a jackal skeleton
(3, -5, D:1)
  a +0 dagger
(8, -22, D:1)
  7 stones
(10, -14, D:1)
  a +0 club
  a goblin skeleton
(14, 18, D:1)
  a ball python corpse (skeletalised by now)
(15, -30, D:1)
  a +0 short sword
(16, -31, D:1)
  a +0 club
(18, -31, D:1)
  a +0 short sword
(21, 10, D:1)
  a bat skeleton
(24, -11, D:1)
  a hobgoblin corpse (skeletalised by now)
(27, 19, D:1)
  a frilled lizard corpse (skeletalised by now)
(41, 7, D:1)
  a +0 club
(49, -8, D:1)
  a frilled lizard corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a jackal corpse
(2, 3, D:2)
  a jackal corpse
(13, 11, D:2)
  a potion of lignification
(16, 11, D:2)
  a +0 short sword
  a +0 leather armour
(17, 12, D:2)
  a +0 flail
  a +0 spear
(18, 12, D:2)
  a ball python corpse
(21, -4, D:2)
  the +1 chain mail "Laomaun" {Harm rPois Dex+3}
    Harm:       It increases damage dealt and taken.
    rPois:      It protects you from poison.
    Dex+3:      It affects your dexterity (+3).
(24, -6, D:2)
  a +0 club
(25, -9, D:2)
  a bat corpse
(26, -5, D:2)
  a +0 dagger
  a goblin corpse