Efficiency

Level 5 of the Dungeon
(0, 0, D:5)
  a +0 trident
(8, 18, D:5)
  a +0 quarterstaff
(24, 7, D:5)
  a +0 robe

Level 6 of the Dungeon
(0, 0, D:6)
  3 scrolls of blinking
(34, -7, D:6)
  12 stones
(39, -6, D:6)
  a +0 rapier
(49, -22, D:6)
  a +0 club
  an orc corpse

Level 7 of the Dungeon
(0, 0, D:7)
  8 gold pieces
(9, 4, D:7)
  a +0 flail