IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  5 stones
(1, -8, D:1)
  a potion of ambrosia
(6, -1, D:1)
  a rat corpse
(8, 3, D:1)
  10 gold pieces
(24, 10, D:1)
  a rat corpse