unkillable

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 hand axe
(19, -22, D:1)
  a +0 short sword
(23, -16, D:1)
  a bat skeleton
(24, -14, D:1)
  a frilled lizard skeleton
(25, 14, D:1)
  a bat skeleton
(25, 15, D:1)
  a bat skeleton
(26, 14, D:1)
  a quokka skeleton
(26, 15, D:1)
  a rat skeleton
(28, 14, D:1)
  a +0 dagger
  a goblin skeleton
  a kobold skeleton
(30, -5, D:1)
  a +0 whip
(39, 12, D:1)
  a hobgoblin corpse (skeletalised by now)
(49, -22, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 club
(2, 0, D:2)
  a +0 club
  a goblin corpse (skeletalised by now)
(3, 0, D:2)
  an adder corpse (skeletalised by now)
(3, 25, D:2)
  an inkwell talisman
(6, 25, D:2)
  a +0 chain mail
(13, 30, D:2)
  a +0 falchion
(17, 3, D:2)
  a jackal skeleton
(19, 4, D:2)
  a +0 war axe
(21, 6, D:2)
  a ball python skeleton
(22, 8, D:2)
  a rat skeleton
(26, 0, D:2)
  3 large rocks
(28, 23, D:2)
  a bat corpse (skeletalised by now)
(34, 7, D:2)
  a +0 hand axe
(45, 4, D:2)
  a frilled lizard skeleton
(46, 2, D:2)
  an adder corpse (skeletalised by now)
(50, 7, D:2)
  a +0 whip

Level 3 of the Dungeon
(2, -3, D:3)
  4 large rocks
(2, 2, D:3)
  a rat corpse (skeletalised by now)
(5, -52, D:3)
  a +0 whip
(6, -51, D:3)
  a +0 mace
(9, -47, D:3)
  an adder skeleton
(11, -30, D:3)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(12, -45, D:3)
  a hobgoblin corpse (skeletalised by now)
(12, -21, D:3)
  an inkwell talisman
(16, -46, D:3)
  a +0 hand axe
  a +0 leather armour
(17, -22, D:3)
  a +0 rapier

Level 4 of the Dungeon