IndexError

Level 1 of the Dungeon
(1, -18, D:1)
  a +0 club
(3, -45, D:1)
  a +0 dagger
(8, -44, D:1)
  a +0 dagger
(12, -9, D:1)
  a +0 club
(18, -38, D:1)
  a +0 club
  5 stones
(28, -16, D:1)
  9 stones
(38, -26, D:1)
  a +0 dagger
(39, -1, D:1)
  a +0 club
(45, -27, D:1)
  a +0 whip

Level 2 of the Dungeon
(0, 0, D:2)
  a hobgoblin corpse
(1, -1, D:2)
  a dart slug corpse
(7, 3, D:2)
  a +0 mace
(9, -4, D:2)
  a +0 club
(13, -4, D:2)
  a +0 short sword
  3 stones
(14, -4, D:2)
  a ball python corpse (skeletalised by now)
  an adder corpse (skeletalised by now)
  a rat corpse (skeletalised by now)
(15, 20, D:2)
  7 stones
(16, 33, D:2)
  a +0 hand axe
(17, 11, D:2)
  a ball python skeleton
(26, 23, D:2)
  a +0 trident
(39, 26, D:2)
  a potion of brilliance
(40, 16, D:2)
  6 large rocks
(42, 24, D:2)
  7 stones

Level 3 of the Dungeon
(0, 0, D:3)
  a hobgoblin corpse