IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a rat corpse (skeletalised by now)
(3, 0, D:1)
  a +0 short sword
  5 stones
(4, -3, D:1)
  a +0 mace
(4, 21, D:1)
  a bat corpse (skeletalised by now)
(6, 17, D:1)
  a +0 robe
(10, -10, D:1)
  2 stones
(12, -6, D:1)
  a +0 dagger
  a goblin skeleton
(13, 17, D:1)
  a +0 dagger
  a goblin skeleton
(14, -6, D:1)
  a +0 dagger
(14, -2, D:1)
  a ball python skeleton
(20, -5, D:1)
  a bat skeleton
(22, -7, D:1)
  a +0 club
(30, 9, D:1)
  a +0 sling {Balvinder}
(32, 7, D:1)
  a +0 dagger
  5 stones
  a kobold skeleton
(35, 7, D:1)
  a rat skeleton
(37, 21, D:1)
  7 stones
(43, 19, D:1)
  4 boomerangs
(45, 19, D:1)
  a +0 spear
(46, 7, D:1)
  a stone
(54, 2, D:1)
  a +0 ring mail
(57, 13, D:1)
  a +0 trident