IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a rat corpse
(0, 11, D:1)
  a rat corpse
(1, 5, D:1)
  a +0 dagger
  5 stones
  a kobold corpse
(2, 6, D:1)
  a rat corpse
(5, 19, D:1)
  7 stones
(11, 17, D:1)
  4 boomerangs
(13, 17, D:1)
  a +0 spear
(14, 5, D:1)
  a stone
(22, 0, D:1)
  a +0 ring mail
(25, 11, D:1)
  a +0 trident