IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  2 stones
(4, -33, D:1)
  a +0 scale mail
(5, 8, D:1)
  a +0 club
  a goblin corpse (skeletalised by now)
(7, -40, D:1)
  a +0 leather armour
(9, -29, D:1)
  a +0 dagger
  a kobold corpse (skeletalised by now)
(14, -43, D:1)
  a +0 long sword
(18, -18, D:1)
  a +0 club
(18, -6, D:1)
  4 stones
(25, -23, D:1)
  a jackal skeleton
(27, -25, D:1)
  a goblin skeleton
(28, -25, D:1)
  a jackal skeleton
(32, -23, D:1)
  a rat skeleton
(36, -2, D:1)
  a ball python skeleton
(40, -28, D:1)
  a +0 whip
  a hobgoblin corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  4 gold pieces
(4, -3, D:2)
  a hobgoblin corpse (skeletalised by now)
(5, 2, D:2)
  a potion of haste
(6, 6, D:2)
  a +0 robe
(7, -1, D:2)
  a potion of invisibility
(10, -28, D:2)
  a scroll of teleportation
(35, -34, D:2)
  a +0 leather armour
(47, -35, D:2)
  a +0 long sword