Nithhogg

Level 1 of the Dungeon
(0, 0, D:1)
  a rat corpse (skeletalised by now)
(3, 7, D:1)
  5 stones
(5, 5, D:1)
  a +0 chain mail
(11, -1, D:1)
  a rat skeleton
(16, 33, D:1)
  a +0 spear
(20, -13, D:1)
  a rat corpse (skeletalised by now)
(21, -11, D:1)
  a hobgoblin skeleton
(24, 12, D:1)
  a ball python skeleton
(27, -1, D:1)
  a +0 club
  a goblin corpse (skeletalised by now)
(38, 9, D:1)
  a +0 dagger
(47, 20, D:1)
  a ball python corpse (skeletalised by now)
(56, 26, D:1)
  a frilled lizard corpse (skeletalised by now)
(56, 36, D:1)
  a +0 whip
  a stone
  a kobold corpse (skeletalised by now)

Level 2 of the Dungeon
(5, 25, D:2)
  3 boomerangs
(9, 4, D:2)
  a +0 mace
(19, 5, D:2)
  a +0 robe
(20, 17, D:2)
  a stone
(22, 5, D:2)
  a hobgoblin corpse (skeletalised by now)
(26, 0, D:2)
  a +0 scale mail
(28, 10, D:2)
  6 stones
(28, 30, D:2)
  a +0 club
  a ball python skeleton
(33, 2, D:2)
  a +0 whip
(34, 19, D:2)
  a +1 dagger of draining
  5 stones
  a kobold skeleton
(35, 19, D:2)
  a +0 dagger
  a goblin skeleton
(36, 39, D:2)
  a +0 war axe
(37, -6, D:2)
  a rat corpse (skeletalised by now)
(39, 41, D:2)
  a jackal corpse (skeletalised by now)
(41, 21, D:2)
  a +0 dagger
  a goblin skeleton
(45, 7, D:2)
  a jackal skeleton
(55, -2, D:2)
  a hobgoblin corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 short sword of venom
  5 stones
  a kobold corpse (skeletalised by now)
(17, 6, D:3)
  a bat skeleton
(19, -22, D:3)
  a +0 barding
(22, 22, D:3)
  6 stones
(27, -14, D:3)
  a +0 rapier
(31, -6, D:3)
  a +0 leather armour
(37, 17, D:3)
  8 stones
(42, -17, D:3)
  a ball python corpse (skeletalised by now)
(45, -13, D:3)
  a +0 whip
(47, -2, D:3)
  a +0 scale mail
(58, -4, D:3)
  a bat corpse (skeletalised by now)
  an iguana corpse (skeletalised by now)

Level 4 of the Dungeon
(0, 0, D:4)
  a flux talisman
(7, -9, D:4)
  a +0 dagger
  3 boomerangs
(13, -13, D:4)
  a hobgoblin corpse (skeletalised by now)
(26, -40, D:4)
  a +0 pair of gloves
(27, -17, D:4)
  11 gold pieces
  a +0 club
  a +0 chain mail
  a +0 club
  an orc corpse
(27, -13, D:4)
  a scroll of identify
(27, -11, D:4)
  a potion of attraction
(28, -18, D:4)
  a +0 dagger
  a +0 robe
  an orc corpse
(28, -17, D:4)
  a +1 dagger of venom (still there?)
  an orc corpse (still there?)