IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(3, 6, D:1)
  a +0 club
(4, 7, D:1)
  a +0 club
  a goblin corpse
(5, 7, D:1)
  a +0 club
(10, -1, D:1)
  a +0 pair of boots
(14, -11, D:1)
  a rat corpse
(19, -9, D:1)
  a +0 dagger
  a goblin corpse
  a quokka corpse
(45, -4, D:1)
  a +0 whip