Subdon

the Dungeon
(0, 0, D)
  4 stones
(0, 1, D)
  the amulet of invisibility {+Inv}
    [amulet of nothing]
    
    +Inv:       It lets you turn invisible.
(0, 4, D)
  11 gold pieces
(2, 4, D)
  7 gold pieces