IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  27 arrows
(2, 11, D:1)
  a +0 chain mail
(7, -2, D:1)
  a jackal corpse
(7, 5, D:1)
  a +0 club
(8, -1, D:1)
  a jackal corpse
(9, 2, D:1)
  a rat corpse