IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(6, 0, D:1)
  a +0 club
(8, -21, D:1)
  5 stones
(9, -24, D:1)
  4 stones
  a +0 dagger
(25, -21, D:1)
  a +0 club
  3 stones
  a +0 whip
  a +0 club
(27, -20, D:1)
  a +0 club
(36, 3, D:1)
  4 stones
(42, -19, D:1)
  a +0 whip
(44, -35, D:1)
  a rat corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 ring mail
(1, -12, D:2)
  3 stones
(1, 29, D:2)
  4 stones
(5, -12, D:2)
  3 stones
(5, 31, D:2)
  a bat corpse
(6, -1, D:2)
  a +0 leather armour
(20, 9, D:2)
  a +0 club
(21, 11, D:2)
  a +0 whip
  a goblin corpse (skeletalised by now)
(31, 20, D:2)
  a frilled lizard corpse (skeletalised by now)