, titled "The Man Called a Genius! Hogback Appears!" , is a pivotal entry in the Thriller Bark Arc . In the English dub, this episode marks a shift from pure mystery to horror-comedy as the Straw Hats begin to uncover the strange residents of the ghost island. Episode Summary
This episode introduces one of the arc's primary antagonists. His eccentric laugh ("Fos-fos-fos!") and gothic design set the tone for the weird science themes of the arc. One Piece (Dub) Episode 340
The story splits between two groups of Straw Hats navigating the eerie island: , titled "The Man Called a Genius
The English dub effectively captures the spooky, B-movie horror vibe that defines this saga. Where to Watch One Piece (Dub) Episode 340