IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(10, -4, D:1)
  4 stones
(10, -2, D:1)
  a stone
(13, 13, D:1)
  a scroll of identify
(14, 19, D:1)
  a bat corpse
(15, 15, D:1)
  a scroll of teleportation