Niddhogr

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 ring mail
(8, 24, D:1)
  117 arrows

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
(2, 31, D:2)
  a +0 whip
(5, -3, D:2)
  a +0 club
(42, 6, D:2)
  97 stones
(45, 2, D:2)
  a +0 dagger
(45, 5, D:2)
  a +0 leather armour
(53, 0, D:2)
  a +0 club

Level 3 of the Dungeon
(8, -13, D:3)
  a +0 club
(11, -5, D:3)
  a +0 club
(12, 12, D:3)
  a +0 club
  2 stones
(31, -1, D:3)
  a +0 ring mail
(36, -9, D:3)
  a +0 whip
  a +0 leather armour
(40, -10, D:3)
  a +0 hand axe
  a +0 dagger
(43, 9, D:3)
  a +0 mace
(45, 22, D:3)
  a +0 hand axe
(49, 12, D:3)
  a +0 dagger
(52, 32, D:3)
  a +0 flail

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 club
(8, -4, D:4)
  a +0 chain mail
(18, 22, D:4)
  a +0 club
(19, -14, D:4)
  101 stones
(31, 12, D:4)
  277 sling bullets
(42, -10, D:4)
  a +0 flail
(45, 17, D:4)
  a +0 club
  a +0 falchion
(45, 30, D:4)
  a +0 dagger
  a +0 robe
(46, 25, D:4)
  154 stones
(47, 25, D:4)
  134 stones
(48, 21, D:4)
  a +0 hand axe
  a +0 chain mail
(50, 18, D:4)
  a +0 hand axe
(50, 21, D:4)
  a +0 hand axe
  a +0 ring mail
(52, 21, D:4)
  a +0 flail

Level 5 of the Dungeon
(0, 0, D:5)
  a +0 scale mail
(3, 1, D:5)
  a +0 robe
(16, -13, D:5)
  a +0 giant spiked club