IndexError

Level 1 of the Dungeon
(5, 8, D:1)
  a bat corpse (skeletalised by now)
(8, 20, D:1)
  a +0 robe
(9, 19, D:1)
  a +0 dagger
  a frilled lizard skeleton
  a kobold skeleton
  a rat skeleton
(15, 27, D:1)
  a +0 scale mail
(18, -6, D:1)
  a ball python skeleton
(24, 24, D:1)
  a rat skeleton
(28, -18, D:1)
  a +0 club
(32, -7, D:1)
  a +0 chain mail
(36, -10, D:1)
  a storm talisman
(37, 9, D:1)
  a +0 scale mail
(37, 19, D:1)
  a +0 dagger
  3 stones
  a kobold corpse (skeletalised by now)
(41, -16, D:1)
  a +0 leather armour
(49, -7, D:1)
  4 stones
  a kobold skeleton
(49, 0, D:1)
  a ball python skeleton

Level 2 of the Dungeon
(0, 0, D:2)
  a quokka corpse (skeletalised by now)
(1, -2, D:2)
  a +0 dagger
(10, -13, D:2)
  a +0 club
(14, 15, D:2)
  a frilled lizard skeleton
(15, -5, D:2)
  a +0 hammer
(24, -14, D:2)
  an adder corpse
(29, 10, D:2)
  a +0 flail
(30, 19, D:2)
  a +0 robe
(31, 5, D:2)
  a ball python skeleton
(35, -13, D:2)
  a rat skeleton
(49, -13, D:2)
  a hobgoblin skeleton
(49, 8, D:2)
  a +0 dagger