IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a staff of earth
(1, 0, D:1)
  2 stones
(4, -7, D:1)
  a ball python corpse
(4, 8, D:1)
  a scroll of revelation
(5, 1, D:1)
  a +0 dagger
(7, -6, D:1)
  a rat corpse
(12, 6, D:1)
  an amulet of guardian spirit
(16, -8, D:1)
  a ball python corpse
(24, 13, D:1)
  a bat corpse
(26, -7, D:1)
  a hobgoblin corpse
(27, 13, D:1)
  a frilled lizard corpse
  a frilled lizard corpse
(31, 10, D:1)
  a +0 leather armour