Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  3 boomerangs

Level 2 of the Dungeon
(0, 0, D:2)
  a frilled lizard corpse
(6, 5, D:2)
  an adder corpse
(13, -1, D:2)
  27 stones
(14, -9, D:2)
  a goblin corpse
(16, 4, D:2)
  8 gold pieces
(17, 7, D:2)
  a frilled lizard corpse (skeletalised by now)
(19, -2, D:2)
  a dart slug corpse
(26, 15, D:2)
  a +0 leather armour
(34, 5, D:2)
  a +0 robe
(39, -10, D:2)
  8 gold pieces

Level 3 of the Dungeon
(0, 0, D:3)
  18 arrows

Level 4 of the Dungeon
(0, 0, D:4)
  10 gold pieces
(1, -4, D:4)
  a +0 dagger
  a +0 robe

Level 5 of the Dungeon
(0, 0, D:5)
  15 stones

Level 7 of the Dungeon
(0, 0, D:7)
  a scroll of blinking
(6, -3, D:7)
  a throwing net {!f}
(6, -2, D:7)
  a throwing net {!f}
(14, 21, D:7)
  8 gold pieces
(24, 31, D:7)
  2 potions of heal wounds