IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
  a goblin corpse
(1, -3, D:1)
  a +0 chain mail
(30, -6, D:1)
  a frilled lizard corpse
  a ball python corpse
(31, -7, D:1)
  a rat corpse