Love, Death, or Mermaid?

Opportunity knocks on the humblest of doors. But it knocks only once. When an overheard conversation leads to a hunt for a long-forgotten pirate's treasure in the sunny tropics, Herbert can't believe his luck. With shipmates including the charming if somewhat feline-featured Katie, a suave and dapper captain, and a hyper-competent crew, such an opportunity seems too good to be true. And we all know how that usually turns out. He soon discovers that said adventure vacation of a lifetime come...