IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 sling
(4, -7, D:1)
  a +0 whip
  2 stones
(7, -9, D:1)
  4 stones
(7, 22, D:1)
  a +0 leather armour
(8, -13, D:1)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(14, -8, D:1)
  8 stones
(15, 14, D:1)
  a rat skeleton
(15, 19, D:1)
  a quokka skeleton
(16, 15, D:1)
  a kobold skeleton
  a frilled lizard skeleton
(17, 9, D:1)
  a +0 robe
(19, 8, D:1)
  a +0 whip
(21, -13, D:1)
  4 stones
(26, -8, D:1)
  a +0 club
  a +0 club
  a +0 club
(34, -22, D:1)
  a +0 chain mail
(35, -14, D:1)
  a goblin corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 hand axe of venom
(6, 24, D:2)
  7 stones
(8, 12, D:2)
  a frilled lizard skeleton
(11, 20, D:2)
  a jackal skeleton
  a jackal skeleton
(12, 21, D:2)
  a ball python skeleton
(15, 10, D:2)
  a rat skeleton
(22, 15, D:2)
  a +0 scale mail
(25, 3, D:2)
  a +0 ring mail
(27, 3, D:2)
  a +0 ring mail
(28, 6, D:2)
  a +0 club
  a goblin skeleton
(31, 30, D:2)
  a quokka skeleton
(32, 51, D:2)
  a +0 club
(38, 16, D:2)
  a +2 whip of pain
  4 stones
  a kobold corpse (skeletalised by now)
(38, 31, D:2)
  a ball python skeleton
(39, 16, D:2)
  a quokka corpse (skeletalised by now)
(40, 20, D:2)
  an adder skeleton
(40, 22, D:2)
  3 poisoned darts
(42, 7, D:2)
  a +0 hand axe
(46, 41, D:2)
  a ball python corpse (skeletalised by now)
(46, 42, D:2)
  an adder corpse (skeletalised by now)
(46, 49, D:2)
  a +0 dagger
  a +0 sling
  a goblin corpse (skeletalised by now)
(51, 12, D:2)
  a +0 hand axe
(53, 18, D:2)
  a +0 sling

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 scale mail
(5, -1, D:3)
  a potion of curing
(7, -17, D:3)
  17 gold pieces
(8, -13, D:3)
  a scroll of teleportation
(9, -17, D:3)
  a +0 short sword
  3 stones
  a kobold corpse
(11, -17, D:3)
  a +0 dagger
  a goblin corpse
(17, -5, D:3)
  a rat corpse
(18, -5, D:3)
  a rat corpse
  a rat corpse
(21, -7, D:3)
  a scroll of enchant armour
(35, -10, D:3)
  a quokka corpse (skeletalised by now)
(36, -29, D:3)
  a +0 dagger
  2 stones
(36, -13, D:3)
  a hobgoblin corpse (skeletalised by now)
(38, -29, D:3)
  a potion of haste
(38, -12, D:3)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(43, -17, D:3)
  3 stones

a sewer
(0, 0, Sewer)
  a rat corpse
(1, 0, Sewer)
  a rat corpse
(6, -5, Sewer)
  a quokka corpse
(14, -2, Sewer)
  a river rat corpse