IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a hobgoblin skeleton
(4, 5, D:1)
  a +0 dagger
  a goblin skeleton
(8, 17, D:1)
  a +0 ring mail
(13, -22, D:1)
  5 stones
(25, 8, D:1)
  a +0 leather armour
(27, 20, D:1)
  a rat corpse
(30, -14, D:1)
  a +0 dagger
(33, -17, D:1)
  a ball python corpse
(35, 6, D:1)
  3 stones
(36, 9, D:1)
  a +0 robe
(37, -15, D:1)
  a hobgoblin skeleton
(43, -7, D:1)
  a +0 whip
  a kobold skeleton
(44, -8, D:1)
  a +0 dagger
(47, 9, D:1)
  a +0 short sword
(49, 1, D:1)
  a frilled lizard skeleton
(49, 3, D:1)
  a +0 whip
  2 stones

Level 2 of the Dungeon
(0, 0, D:2)
  an amulet of regeneration