Niddhogr

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 leather armour
(11, 0, D:1)
  a +0 club
(16, -12, D:1)
  3 stones
(18, -12, D:1)
  a +0 club
  a +0 scale mail
(19, -12, D:1)
  2 stones
(29, 3, D:1)
  110 stones
(30, -15, D:1)
  a +0 ring mail
(30, 30, D:1)
  a +0 short sword
(42, -12, D:1)
  139 stones
(43, 34, D:1)
  a +0 club
(46, 10, D:1)
  a potion of mutation
(48, 9, D:1)
  a giant cockroach corpse (still there?)
  a jackal corpse (still there?)
(49, 10, D:1)
  a rat corpse

Level 2 of the Dungeon
(0, 0, D:2)
  120 stones
(4, 13, D:2)
  a +0 dagger
(8, 17, D:2)
  a +0 leather armour
(10, 3, D:2)
  a +0 club
(23, -16, D:2)
  a +0 club
(27, -20, D:2)
  a +0 club
(31, -2, D:2)
  a +0 dagger
(34, 23, D:2)
  165 stones
(37, -22, D:2)
  a +0 shield
  109 stones
(39, 20, D:2)
  a +0 club
(41, 5, D:2)
  a +0 club
(62, 6, D:2)
  218 stones