IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
  5 stones
  a kobold corpse
(0, 1, D:1)
  a scroll of acquirement
(5, -1, D:1)
  a rat corpse
(7, 13, D:1)
  7 stones
(13, 11, D:1)
  4 boomerangs
(15, 11, D:1)
  a +0 spear
(16, -1, D:1)
  a stone
(24, -6, D:1)
  a +0 ring mail
(27, 5, D:1)
  a +0 trident