One Piece - Episode 411

, titled "The Secret Hidden on the Backs – Luffy and the Snake Princess Meet" , is a pivotal episode in the Amazon Lily Arc . It originally aired on August 2, 2009 , and is approximately 24 minutes long . Key Plot Developments

Elder Nyon warns Hancock that refusing the World Government's summons to battle Whitebeard could lead to her losing her Warlord (Shichibukai) status, endangering the safety of Amazon Lily. Why This Episode is Significant

While searching for a ship to leave Amazon Lily, Luffy accidentally crashes through the roof of the Kuja palace and falls into the royal bath where Boa Hancock , the Pirate Empress, is bathing.

Hancock attempts to use her Mero Mero no Mi powers to petrify Luffy, but he is completely unaffected because he has no "dirty thoughts" toward her, which shocks the Empress.

Luffy sees a mysterious symbol on Hancock’s back, which she and her sisters claim is the "Eyes of the Gorgon" that turns anyone who sees it to stone.