Efficiency

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 ring mail
(10, -1, D:4)
  a scroll of amnesia

Level 5 of the Dungeon
(0, 0, D:5)
  a +0 long sword
(1, -8, D:5)
  12 bolts
(17, 0, D:5)
  10 gold pieces

Level 6 of the Dungeon
(0, 0, D:6)
  a +0 mace
(5, 4, D:6)
  15 arrows