IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(18, 4, D:1)
  a +0 chain mail
(32, 21, D:1)
  a +0 pair of boots
(33, -3, D:1)
  a stone
(38, 11, D:1)
  a stone
(40, -6, D:1)
  a +0 ring mail

Level 2 of the Dungeon
(0, 0, D:2)
  a giant cockroach corpse
(4, 4, D:2)
  a Grand Grimoire
(9, 0, D:2)
  a +0 plate armour
(12, -5, D:2)
  a +0 dagger
(15, 16, D:2)
  an adder corpse
(28, 17, D:2)
  a +0 club
(29, 1, D:2)
  a kobold corpse (skeletalised by now)
(30, 20, D:2)
  a +0 club
  a kobold corpse (skeletalised by now)
(32, -1, D:2)
  a bat corpse (skeletalised by now)
(36, 10, D:2)
  a +0 dagger
  a +0 club
  a goblin corpse (skeletalised by now)
(37, 13, D:2)
  a hobgoblin corpse (skeletalised by now)