IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  21 stones
(5, -18, D:1)
  a +0 leather armour
(11, -25, D:1)
  a ball python corpse (skeletalised by now)
(11, 11, D:1)
  4 large rocks
(21, -17, D:1)
  a +0 dagger
(29, -24, D:1)
  a +0 robe
(31, -21, D:1)
  a dart slug corpse
(51, -16, D:1)
  a rat corpse
(53, -9, D:1)
  a +0 mace