IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
(5, 0, D:1)
  a frilled lizard skeleton
(8, -4, D:1)
  a frilled lizard skeleton
  a frilled lizard skeleton
(13, -24, D:1)
  a +0 ring mail
  a hobgoblin skeleton
(14, -24, D:1)
  a +0 club
(19, -16, D:1)
  a bat skeleton
(20, 10, D:1)
  a +0 dagger
  a kobold corpse (skeletalised by now)
(21, -10, D:1)
  a +0 short sword
(24, -15, D:1)
  a +0 whip
  4 stones
  a kobold skeleton
(25, -31, D:1)
  a bat corpse (skeletalised by now)
(27, -15, D:1)
  a kobold skeleton
(31, -9, D:1)
  a bat skeleton
(35, -2, D:1)
  4 stones
  a +0 dagger
  a kobold skeleton
(42, -10, D:1)
  a rat skeleton
(47, -8, D:1)
  a +0 dagger
(51, 1, D:1)
  a +0 dagger
  a quokka corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 leather armour
(2, -19, D:2)
  a +0 flail
(2, -1, D:2)
  a frilled lizard skeleton
(27, -19, D:2)
  a +0 short sword
(31, -11, D:2)
  a +0 dagger
(42, -4, D:2)
  a rat corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  2 javelins
(3, -2, D:3)
  a +0 dagger