Niddhogr

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 chain mail
(2, 1, D:1)
  152 stones
(3, 1, D:1)
  a +0 club
(6, -7, D:1)
  216 bolts
(17, -21, D:1)
  a +0 club
(21, -21, D:1)
  a stone

Level 2 of the Dungeon
(0, 0, D:2)
  a cursed +0 robe
(4, 0, D:2)
  a +0 club
(13, 21, D:2)
  197 bolts
(14, 3, D:2)
  a +0 club
(15, 20, D:2)
  a +0 robe
(17, 11, D:2)
  a +0 flail
  284 stones
  a +0 ring mail
(22, 13, D:2)
  180 stones
(23, -3, D:2)
  87 stones
(24, 4, D:2)
  a +0 leather armour
(24, 14, D:2)
  a +0 dagger
  156 stones
(25, 12, D:2)
  a +0 dagger
(27, 26, D:2)
  a +0 club
(28, 5, D:2)
  a +0 leather armour
  a +0 dagger
(28, 6, D:2)
  a +0 morningstar
(28, 22, D:2)
  a +0 dagger
(33, 7, D:2)
  a +0 robe
(36, -4, D:2)
  a +0 scale mail
(47, -3, D:2)
  a -2 hand axe
(50, 14, D:2)
  a +0 hand axe

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 scale mail
(6, 10, D:3)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(8, -2, D:3)
  103 stones
(15, 12, D:3)
  a potion of mutation
(16, 14, D:3)
  10 gold pieces
(17, 1, D:3)
  a +0 club
(19, -14, D:3)
  a +0 whip
(19, -10, D:3)
  a +0 short sword
(33, 13, D:3)
  a goblin skeleton
(34, -3, D:3)
  a +0 club
(46, -15, D:3)
  a scroll of remove curse
(48, -20, D:3)
  a quokka skeleton