Nithhogg

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 ring mail
(4, -10, D:1)
  a +1 dagger of protection
(10, 13, D:1)
  a +0 whip
  a kobold corpse (skeletalised by now)
(12, 5, D:1)
  a +2 dagger of venom
  a kobold corpse (skeletalised by now)
(15, 6, D:1)
  a +0 hand axe
(22, 14, D:1)
  a +0 ring mail
(23, -8, D:1)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(24, -6, D:1)
  a +0 dagger
  a quokka corpse (skeletalised by now)
  a goblin corpse (skeletalised by now)
(41, 22, D:1)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(42, 29, D:1)
  a quokka corpse (skeletalised by now)
(43, 1, D:1)
  a bat skeleton
(50, 35, D:1)
  2 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 quarterstaff
(20, 43, D:2)
  a bat corpse (skeletalised by now)
(24, 6, D:2)
  a bat skeleton
(27, -14, D:2)
  a +0 club
(37, 30, D:2)
  a hobgoblin skeleton
(37, 31, D:2)
  a hobgoblin skeleton
(42, -1, D:2)
  a rat skeleton
(43, -1, D:2)
  a +0 club
(44, -1, D:2)
  a +0 dagger
  a kobold skeleton
(48, 41, D:2)
  a rat corpse (skeletalised by now)
(50, 33, D:2)
  a +0 short sword
  2 stones
(56, 9, D:2)
  a +0 club
  a goblin skeleton
(57, -1, D:2)
  a +0 short sword

Level 3 of the Dungeon
(0, 0, D:3)
  an adder corpse
(15, -2, D:3)
  a frilled lizard corpse
(27, -6, D:3)
  a +0 club
(29, -34, D:3)
  a scroll of enchant armour
(30, -21, D:3)
  a +0 war axe
  a +0 ring mail
(30, -20, D:3)
  a +0 falchion
  a +0 mace
  a +0 leather armour
  an orc corpse

Level 5 of the Dungeon
(0, 0, D:5)
  a book of Burglary
(8, -13, D:5)
  a quokka corpse
(13, -19, D:5)
  a potion of might

Level 6 of the Dungeon
(0, 0, D:6)
  14 gold pieces
(1, -17, D:6)
  6 stones
(7, -9, D:6)
  a +0 leather armour
(8, 1, D:6)
  a book of Vapours
(11, 9, D:6)
  a +0 chain mail
(13, -3, D:6)
  a scroll of enchant weapon
(17, -4, D:6)
  a wand of mindburst (16)