IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
  a goblin corpse
(13, 5, D:1)
  a +0 leather armour
(14, -4, D:1)
  a jackal skeleton
(15, -3, D:1)
  a +0 short sword
(15, 19, D:1)
  a +0 leather armour
(16, -12, D:1)
  a ball python skeleton
(16, 2, D:1)
  a +0 whip
(17, 24, D:1)
  a rat corpse
(18, -6, D:1)
  a +0 dagger
(24, 18, D:1)
  a +0 ring mail
(36, 1, D:1)
  a jackal corpse (skeletalised by now)
(36, 5, D:1)
  a bat corpse (skeletalised by now)
(38, -3, D:1)
  a +0 club
  a goblin corpse (skeletalised by now)
(38, 2, D:1)
  a rat corpse (skeletalised by now)
(39, -3, D:1)
  a +0 club
  5 stones
  a kobold corpse (skeletalised by now)
(40, -9, D:1)
  a ball python corpse (skeletalised by now)
(43, 7, D:1)
  a bat corpse
(45, -3, D:1)
  a +0 hand axe
(52, -3, D:1)
  a book of Changes