One Piece Chapter 3, page 7-9: Chapter 3: Enter Zolo: Pirate Hunter

A dramatic full-page view of Roronoa Zolo tied to a wooden crucifix-like post in the middle of the hot, empty courtyard. Luffy, looking over the wall, casually suggests, "So that's him. Hmm! I could just untie those ropes and set him free...

Koby panics, screaming, "If you let him loose, he'll kill us then wreck the town!! That's suicide!!" Suddenly, Zolo looks up, notices them, and calls them over, asking them to untie him. He smiles menacingly, claiming he has been tied up for nine days and offers to capture a high-bounty target and give them all the money in exchange for his freedom, assuring them, "You can trust me. I'm a man of my word.

Koby begs Luffy not to free Zolo, but Luffy confidently smiles, saying Zolo won't kill them because Luffy wouldn't let him. Suddenly, a young girl with short dark hair and a striped shirt sneaks up to the wall with a ladder, telling them to be quiet.