unkillable

Level 1 of the Dungeon
(1, 33, D:1)
  a +0 leather armour
(4, 26, D:1)
  a +0 scale mail
(7, 3, D:1)
  a +0 spear
(18, 11, D:1)
  a +0 short sword
  a kobold skeleton
(20, 9, D:1)
  a hobgoblin skeleton
(22, 24, D:1)
  4 stones
  a goblin corpse (skeletalised by now)
(23, 24, D:1)
  4 stones
(23, 28, D:1)
  5 stones
(29, 29, D:1)
  3 stones
(33, 11, D:1)
  a +0 helmet
(36, 30, D:1)
  a +0 robe
(39, 7, D:1)
  a +0 ring mail

Level 2 of the Dungeon
(0, 0, D:2)
  an adder corpse (skeletalised by now)
(10, 13, D:2)
  a hobgoblin skeleton
(16, -3, D:2)
  a +0 rapier
(28, 1, D:2)
  a +0 dagger
  a goblin skeleton
(28, 2, D:2)
  a +0 whip
  a +0 animal skin
  a +0 helmet
  a +0 club
  the hobgoblin skeleton of Robin
  a goblin skeleton
(28, 38, D:2)
  a +0 club
(29, 1, D:2)
  a +0 club
  a +0 club
  a +0 club
  a +0 dagger
  a goblin skeleton
  a goblin skeleton
  a hobgoblin skeleton
(29, 18, D:2)
  a +0 club
(30, 1, D:2)
  a +0 dagger
  a +0 club
  a goblin skeleton
  a goblin skeleton
(30, 17, D:2)
  a ball python skeleton
(31, -1, D:2)
  a staff of earth
(34, 6, D:2)
  a quokka skeleton
(34, 19, D:2)
  a +0 hand axe
(49, 26, D:2)
  a +0 dagger
(50, 29, D:2)
  a jackal skeleton
  a jackal skeleton
(50, 33, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
  a jackal corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  an adder corpse (skeletalised by now)
(1, 0, D:3)
  an orb of pyromania
(4, -34, D:3)
  a rat corpse (skeletalised by now)
(25, 12, D:3)
  a +0 dagger
  a +0 sling
  a goblin corpse (skeletalised by now)
(28, -15, D:3)
  a rat skeleton
(32, -26, D:3)
  a +0 dagger
(33, -2, D:3)
  a fortress talisman
(34, 9, D:3)
  a +0 short sword
(37, -34, D:3)
  a +0 club
(38, -2, D:3)
  a +0 flail
(40, -10, D:3)
  2 curare-tipped darts
(40, -5, D:3)
  a +0 flail
(49, -7, D:3)
  an amulet of regeneration
(55, -14, D:3)
  a +0 giant spiked club
  an ogre corpse
(61, 8, D:3)
  a +0 scythe
  a +0 robe
  the human corpse of Sigmund (skeletalised by now)
(71, -28, D:3)
  a +0 falchion

Level 4 of the Dungeon
(0, 0, D:4)
  a scorpion corpse
(13, 10, D:4)
  a scroll of teleportation
  a +0 chain mail