IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 leather armour
(4, 5, D:1)
  a +0 club
(6, -9, D:1)
  a +0 club
(9, -3, D:1)
  a +0 club
(11, -1, D:1)
  a +0 club
(14, 27, D:1)
  a +0 short sword
  4 stones
(30, 2, D:1)
  a +0 dagger
(39, 13, D:1)
  a +0 dagger
(39, 23, D:1)
  5 stones
  a +0 short sword
(53, 0, D:1)
  23 stones
(53, 12, D:1)
  a +0 robe
(54, 8, D:1)
  11 stones
(55, 7, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  14 arrows
(8, -12, D:2)
  a +0 hand axe
(12, 3, D:2)
  a +0 short sword
(22, -5, D:2)
  a +0 chain mail
(28, 14, D:2)
  10 stones
  a +0 dagger
  a +0 hunting sling
(28, 17, D:2)
  18 arrows
(37, -2, D:2)
  13 stones
(40, 12, D:2)
  a +0 club
(46, 14, D:2)
  a +0 longbow
(51, 9, D:2)
  12 poisoned darts

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 short sword
(1, 3, D:3)
  a +4 short sword (still there?)
  7 poisoned darts (still there?)
  a kobold corpse (still there?)
(3, -3, D:3)
  a +0 buckler
(9, 0, D:3)
  a bat corpse
(10, 1, D:3)
  11 stones
(35, 11, D:3)
  a worm corpse
(39, 13, D:3)
  a +0 whip