IndexError

Level 1 of the Dungeon
(6, -24, D:1)
  a +0 leather armour
(9, -14, D:1)
  a hobgoblin skeleton
(9, -12, D:1)
  a frilled lizard skeleton
(9, -11, D:1)
  a +0 dagger
(10, -24, D:1)
  a +0 sling
(10, -23, D:1)
  a bat skeleton
(11, -25, D:1)
  a +0 helmet
(11, 1, D:1)
  a +0 mace
(12, -2, D:1)
  a +0 helmet
(16, -26, D:1)
  a bat corpse (skeletalised by now)
(20, -20, D:1)
  a ring of poison resistance {rPois, !d}
(21, -20, D:1)
  a +0 spear
(24, 11, D:1)
  a rat skeleton
(24, 13, D:1)
  a ball python skeleton
(28, 3, D:1)
  a +0 mace
(29, 17, D:1)
  a quokka skeleton
(32, -34, D:1)
  a +0 short sword
(32, -33, D:1)
  a rat skeleton
(34, -32, D:1)
  a hobgoblin skeleton
(36, -23, D:1)
  a hobgoblin skeleton
(37, 13, D:1)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(48, -14, D:1)
  a ball python skeleton
(53, -13, D:1)
  a +0 club

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 short sword
  2 stones
  a kobold corpse (skeletalised by now)
(14, -2, D:2)
  a +0 leather armour
(18, -17, D:2)
  a +0 short sword
(18, -16, D:2)
  a +0 club
  a goblin corpse
(21, 24, D:2)
  a +0 ring mail
(29, -13, D:2)
  a +0 robe
  a +0 dagger
(39, 27, D:2)
  a potion of haste