Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  6 gold pieces
(5, 0, D:1)
  a frilled lizard corpse (skeletalised by now)
(5, 1, D:1)
  a +0 dagger
(6, 1, D:1)
  a +0 dagger
(7, -1, D:1)
  a frilled lizard corpse (skeletalised by now) (still there?)
  a frilled lizard corpse (skeletalised by now) (still there?)
(9, -5, D:1)
  a +0 dagger (still there?)
  a frilled lizard corpse (skeletalised by now) (still there?)
  a frilled lizard corpse (skeletalised by now) (still there?)
(9, 29, D:1)
  16 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a rat corpse
  a ball python corpse
(12, -5, D:2)
  a +0 dagger
  a +0 animal skin
  a +0 dagger
  a +0 dagger
  the hobgoblin corpse of Robin
  a hobgoblin corpse
  a bat corpse
  a goblin corpse
(12, 4, D:2)
  a hobgoblin corpse
(14, -5, D:2)
  a +0 dagger (still there?)
  a goblin corpse (still there?)
(14, 3, D:2)
  a +0 dagger
  a goblin corpse
(14, 4, D:2)
  a +0 club

Level 3 of the Dungeon
(0, 0, D:3)
  a book of the Senses
(6, -13, D:3)
  22 bolts
(6, -7, D:3)
  a giant cockroach corpse
(17, -10, D:3)
  a ball python corpse
(17, 9, D:3)
  19 bolts
(21, -9, D:3)
  21 stones

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 robe
(0, 4, D:4)
  18 stones