Taxemic

the Dungeon
(0, 0, D)
  10 gold pieces
(1, 0, D)
  9 gold pieces
(1, 1, D)
  8 gold pieces
(1, 2, D)
  a +1 cloak of invisibility
(2, 0, D)
  9 gold pieces
(2, 1, D)
  7 gold pieces
(3, 0, D)
  7 gold pieces