Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a quokka corpse
(12, 16, D:1)
  8 stones

Level 2 of the Dungeon
(0, 0, D:2)
  2 stones (still there?)
  a +0 short sword (still there?)
  a kobold corpse (still there?)

Level 3 of the Dungeon
(0, 0, D:3)
  a ball python corpse