Mistakes

Level 1 of the Dungeon
(0, 0, D:1)
  2 stones
(2, -14, D:1)
  a +0 club
(5, -16, D:1)
  a +0 club
(5, -14, D:1)
  a +0 hand axe
(8, -1, D:1)
  a frilled lizard corpse (skeletalised by now)
(8, 15, D:1)
  a hobgoblin corpse (skeletalised by now)
  a hobgoblin corpse (skeletalised by now)
(13, 17, D:1)
  a +0 hand axe
(18, 24, D:1)
  a +0 mace
(27, 28, D:1)
  a bat corpse (skeletalised by now)
(30, 25, D:1)
  a +0 robe
(54, 13, D:1)
  a +0 short sword

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 short sword
  a stone
(11, -22, D:2)
  a +0 leather armour
(24, -5, D:2)
  a +0 robe
(28, -27, D:2)
  a bat corpse (skeletalised by now)
(36, 25, D:2)
  a +0 whip
  a kobold corpse (skeletalised by now)
(42, -30, D:2)
  a hobgoblin corpse (skeletalised by now)
(44, -31, D:2)
  a hobgoblin corpse (skeletalised by now)
(45, -3, D:2)
  a +0 whip
  a kobold corpse (skeletalised by now)
(47, 25, D:2)
  a +0 dagger
(48, -14, D:2)
  a +0 club
(48, -13, D:2)
  a frilled lizard skeleton
(60, -6, D:2)
  a quokka corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  a quokka corpse (skeletalised by now)
(0, 7, D:3)
  a +0 scale mail
(5, -18, D:3)
  a +0 sling
(21, -8, D:3)
  6 gold pieces
(21, -5, D:3)
  a ball python corpse (skeletalised by now)
(40, -42, D:3)
  an adder corpse

Level 5 of the Dungeon
(0, 0, D:5)
  a +1 hat
  (unseen)