IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  4 stones
(3, 42, D:1)
  a +0 whip
  4 stones
(5, 9, D:1)
  a +0 dagger
(7, -8, D:1)
  a +0 club
(16, 29, D:1)
  a +0 dagger
(18, 11, D:1)
  a +0 short sword
(30, 0, D:1)
  5 stones
(37, -7, D:1)
  a +0 leather armour
(42, 28, D:1)
  a +0 ring mail
(48, 25, D:1)
  a +0 whip
(52, 31, D:1)
  a +0 short sword
  2 stones

Level 2 of the Dungeon
(0, 0, D:2)
  an orb of energy
(7, -3, D:2)
  a +0 robe
  a +0 scythe
(10, -10, D:2)
  a +0 club
(18, 5, D:2)
  a +0 club
(43, -5, D:2)
  a bat corpse (skeletalised by now)
(43, 18, D:2)
  a +0 club
(46, -5, D:2)
  a +0 club

Level 3 of the Dungeon
(0, 0, D:3)
  5 stones
(1, 0, D:3)
  a giant cockroach corpse
(5, -9, D:3)
  a +0 club
(14, -13, D:3)
  a +0 ring mail
(16, -12, D:3)
  a +0 hand axe
  a +0 chain mail
(17, -12, D:3)
  a +0 club
  a goblin corpse