Niddhogr

Level 1 of the Dungeon
(0, 0, D:1)
  a cursed -2 club
(4, -15, D:1)
  a +0 ring mail
(8, -46, D:1)
  6 stones
(16, -57, D:1)
  25 bolts
(18, -29, D:1)
  25 stones
(26, -37, D:1)
  a +0 hunting sling
(40, -22, D:1)
  a +0 scale mail
(40, -21, D:1)
  a +1 hand axe of venom
  (unseen)
(40, -19, D:1)
  4 tomahawks
  2 stones
(41, -21, D:1)
  a +0 short sword
  a +0 club
  a +0 war axe
  a +0 short sword
  a +0 scale mail
  a +0 falchion
  a cursed +0 ring mail
  a +0 scale mail
  a cursed +0 ring mail
  a +2 whip of venom
  a +0 whip
  a +0 dagger
  a big kobold corpse (skeletalised by now)
(41, -19, D:1)
  a cursed +0 club
  a +0 scale mail
  a big kobold corpse (skeletalised by now)
(42, -20, D:1)
  a stone
  a tomahawk
(43, -19, D:1)
  a steel tomahawk

Level 2 of the Dungeon
(2, -5, D:2)
  3 curare-tipped needles
(12, -9, D:2)
  2 stones
(13, -7, D:2)
  a +0 dagger
  2 stones
  a +0 leather armour
(14, -37, D:2)
  22 stones
(14, -11, D:2)
  a +0 club
  2 stones
(14, -10, D:2)
  a stone
(16, -11, D:2)
  2 stones
  a +0 dagger
(17, -11, D:2)
  a stone
(27, -17, D:2)
  a stone
(27, -16, D:2)
  a stone
(27, -15, D:2)
  a stone
(29, -35, D:2)
  a +0 hunting sling
  12 stones
(31, -36, D:2)
  a +0 hunting sling
(31, -31, D:2)
  a +0 hunting sling
(34, -30, D:2)
  a stone
(35, -29, D:2)
  a stone
(37, -29, D:2)
  a stone
(38, -29, D:2)
  a stone
(40, -29, D:2)
  a +0 dagger
(40, -28, D:2)
  a +0 club
(46, -38, D:2)
  a +0 spear
(48, -21, D:2)
  20 arrows
(52, -17, D:2)
  19 poisoned needles

Level 3 of the Dungeon
(0, 0, D:3)
  5 stones
(2, 4, D:3)
  24 bolts
(8, 0, D:3)
  a +0 short sword
(10, -2, D:3)
  a +0 ring mail
(18, 21, D:3)
  a cursed +0 club
(23, 14, D:3)
  22 stones
(27, -4, D:3)
  a stone
(29, 8, D:3)
  a +0 leather armour
(42, 17, D:3)
  a scroll of random uselessness
(43, 15, D:3)
  a scroll of identify
(46, 38, D:3)
  a poisoned needle
(48, 40, D:3)
  a +0 blowgun
  a +0 club
  16 poisoned needles

Level 4 of the Dungeon
(0, 0, D:4)
  an orc skeleton
(1, 1, D:4)
  a tomahawk
(1, 3, D:4)
  2 tomahawks
(1, 4, D:4)
  a tomahawk
(2, 9, D:4)
  a +0 leather armour
  a cursed -3 club
  an orc skeleton
(4, 15, D:4)
  a +0 club
  (unseen)
(7, 14, D:4)
  20 gold pieces