Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a leopard gecko corpse
(9, -4, D:1)
  14 sling bullets

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 scale mail
(1, 0, D:2)
  a scroll of identify
(4, 1, D:2)
  12 gold pieces
(15, 2, D:2)
  a +0 spear