Nitrous

Level 1 of the Dungeon
(0, 0, D:1)
  3 boomerangs
(2, 8, D:1)
  a +0 leather armour
(5, -1, D:1)
  5 curare-tipped darts
(7, 1, D:1)
  a +0 ring mail
(7, 7, D:1)
  a +0 orcbow
(8, 28, D:1)
  4 darts of dispersal
(19, 21, D:1)
  a +0 leather armour
(24, 11, D:1)
  5 stones
(37, 21, D:1)
  a +0 whip
  2 stones
(40, -19, D:1)
  a +2 scale mail of cold resistance

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 pair of boots
(10, -18, D:2)
  a +0 club
  a stone
  a kobold corpse
(10, 6, D:2)
  a +0 short sword
(14, -16, D:2)
  an adder corpse
(23, 1, D:2)
  a +0 robe
(33, 15, D:2)
  a beast talisman
(36, -16, D:2)
  a +0 dagger
  a goblin corpse
(40, -11, D:2)
  a +0 dagger

Level 3 of the Dungeon
(0, 0, D:3)
  a hobgoblin corpse