The Deep Sea Opal was a mystical object that gave its holder an amazing amount of fortune, power and fame. Yet anyone who steals the opal would be placed under a terrible curse. The opal's powers could only be used if the opal was given as a gift. The opal's location was deep under the sea off the coast of New Holland. The Rainbow Serpent guarded the jewel and would eat anyone who tried to steal it. Sao Feng was sent on a mission by his brother, Liang Dao, to retrieve the opal. Sao Feng did voyage to the opal but after meeting Jack Sparrow, enlisted him to recover the opal. Jack was able to barter his way onto getting his hands on the opal without stealing it.