Efficiency

Level 5 of the Dungeon
(0, 0, D:5)
  17 gold pieces
(4, 2, D:5)
  a +0 dagger
(16, -34, D:5)
  21 stones

Level 6 of the Dungeon
(0, 0, D:6)
  a +0 hunting sling
(19, -29, D:6)
  a +0 ring mail
(22, -27, D:6)
  12 gold pieces
(23, -23, D:6)
  15 gold pieces