Efficiency

Level 4 of the Dungeon
(0, 0, D:4)
  18 gold pieces
(14, 6, D:4)
  a +0 flail
  an orc corpse

Level 5 of the Dungeon
(0, 0, D:5)
  a scroll of enchant weapon
(0, 1, D:5)
  a +0 club
(2, -2, D:5)
  a +0 whip
(3, 6, D:5)
  a potion of curing
(7, 2, D:5)
  10 gold pieces
(8, 0, D:5)
  a scroll of identify
(10, 1, D:5)
  14 gold pieces
(14, -7, D:5)
  21 arrows
  a +0 shortbow
(20, -15, D:5)
  a +0 mace