One Piece Chapter 542 — The Depths of Impel Down - Kind: chapter overview - Chapter: 542 - Characters: Blackbeard, Magellan, Whitebeard ### Summary Magellan, Ivankov, and the lower prison levels turn Ace’s rescue into a desperate race. The chapter mainly follows Blackbeard, Magellan, Whitebeard, keeping the focus on the Impel Down storyline.