IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a rat corpse
(3, -9, D:1)
  a +0 dagger
  5 stones
  a kobold corpse
(7, -8, D:1)
  a rat corpse
(9, 6, D:1)
  7 stones
(15, 4, D:1)
  4 boomerangs
(17, 4, D:1)
  a +0 spear
(18, -8, D:1)
  a stone
(26, -13, D:1)
  a +0 ring mail
(29, -2, D:1)
  a +0 trident