Undo

Level 1 of the Dungeon
(7, -3, D:1)
  a +0 club
(15, 7, D:1)
  a +0 dagger
(17, 3, D:1)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(17, 21, D:1)
  a frilled lizard skeleton
(20, 26, D:1)
  a ball python skeleton
(21, 11, D:1)
  a +0 dagger
(26, 19, D:1)
  a +0 spear
(28, 16, D:1)
  a ball python corpse (skeletalised by now)
(36, 1, D:1)
  a +0 mace of protection
(37, 0, D:1)
  a ball python corpse (skeletalised by now)
(46, 26, D:1)
  a rat corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a rat corpse
(1, 0, D:2)
  a +0 whip
(4, 0, D:2)
  a +0 chain mail
(10, -13, D:2)
  a +0 club
  a goblin corpse