Efficiency

Level 1 of the Dungeon
(4, -3, D:1)
  a +0 dagger
(5, 23, D:1)
  a +0 hunting sling
(6, -5, D:1)
  a +0 whip
(6, 4, D:1)
  a quokka corpse
(7, 17, D:1)
  a quokka corpse
(8, -2, D:1)
  a +0 hand axe
(14, -2, D:1)
  7 gold pieces
(17, -1, D:1)
  15 stones
(21, 0, D:1)
  a staff of death {!a}
(23, 1, D:1)
  a +0 hunting sling

Level 2 of the Dungeon
(0, 0, D:2)
  an adder corpse

Level 3 of the Dungeon
(0, 0, D:3)
  an amulet of reflection
(1, -10, D:3)
  a +0 club
  a +0 leather armour
  a quokka corpse
(2, -11, D:3)
  a +0 dagger
  a +0 robe
  a +0 club
(2, -1, D:3)
  a potion of brilliance
(4, -12, D:3)
  a rat corpse
(9, -20, D:3)
  a +0 mace
(9, -17, D:3)
  2 gold pieces
(9, -11, D:3)
  a ball python corpse