IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(3, 7, D:1)
  a +0 scale mail
(5, 12, D:1)
  5 boomerangs
(13, 10, D:1)
  6 stones
(14, -6, D:1)
  a +0 club
  a goblin skeleton
(14, -4, D:1)
  a +0 dagger
(15, 22, D:1)
  a +0 leather armour
(20, 18, D:1)
  a bat corpse (skeletalised by now)
(26, 13, D:1)
  a bat corpse (skeletalised by now)
(33, -13, D:1)
  a stone
(39, 16, D:1)
  a rat corpse (skeletalised by now)
  a hobgoblin corpse (skeletalised by now)
(39, 17, D:1)
  a +0 spear
(42, -9, D:1)
  a +0 whip
  4 stones
(43, 2, D:1)
  a frilled lizard corpse (skeletalised by now)
(47, -7, D:1)
  a rat corpse (skeletalised by now)
(50, -17, D:1)
  a goblin corpse
(54, -21, D:1)
  a +0 hand axe