IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a hobgoblin skeleton
(3, 17, D:1)
  a +0 dagger
(5, 7, D:1)
  a +0 hand axe
(5, 32, D:1)
  a ball python skeleton
  a quokka skeleton
(8, 3, D:1)
  a +0 whip
  a +0 leather armour
  a kobold skeleton
(8, 24, D:1)
  a rat skeleton
(8, 26, D:1)
  a +0 dagger
(9, 23, D:1)
  a jackal skeleton
(11, 4, D:1)
  a +0 club
  a goblin skeleton
(12, 13, D:1)
  a bat skeleton
(14, 0, D:1)
  a bat skeleton
(15, -3, D:1)
  a +0 dagger
(20, -3, D:1)
  a +0 club
  4 stones
(25, 4, D:1)
  a +0 dagger
  a +0 dagger
  a +0 dagger
  a goblin skeleton
  a goblin skeleton
(25, 5, D:1)
  a +0 club
  a +0 sling
  a goblin corpse (skeletalised by now)
(26, 29, D:1)
  a hobgoblin skeleton
(27, 29, D:1)
  a frilled lizard skeleton
(30, 20, D:1)
  a +0 short sword
(30, 27, D:1)
  a goblin skeleton
(31, 11, D:1)
  a +0 leather armour
(31, 28, D:1)
  a +0 whip
(34, 20, D:1)
  a rat corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 8, D:2)
  a +0 chain mail
(5, 21, D:2)
  a +0 dagger
(5, 28, D:2)
  a +0 short sword
(6, -15, D:2)
  a hobgoblin corpse (skeletalised by now)
(11, 9, D:2)
  a rat skeleton
(18, 16, D:2)
  a ball python skeleton
(29, -9, D:2)
  a +0 ring mail
(33, -14, D:2)
  a +0 whip
(34, 12, D:2)
  a +0 chain mail
(35, -8, D:2)
  a +0 animal skin
  a +0 short sword
(35, -7, D:2)
  a hobgoblin corpse (skeletalised by now)
(36, -6, D:2)
  a +0 dagger
  a +0 dagger
  a +0 dagger
  a goblin corpse (skeletalised by now)
(37, -7, D:2)
  a +0 dagger
(37, -6, D:2)
  a +0 club
  a goblin corpse (skeletalised by now)
(40, -10, D:2)
  a +0 ring mail
  a rat skeleton
(41, -6, D:2)
  a +0 whip
  a kobold skeleton
(53, 2, D:2)
  a +0 hammer