One Piece Chapter 32, page 15: Grave Danger

Nami realizes what needs to be done, thinking, "IF THIS GOES ON... I HAVE TO GET HIS KATANAS BACK!! IF I CAN GET ZORO HIS KATANAS, HE WILL DEFINITELY WIN!" Usopp tries to stop her, saying, "IN THAT CASE, LET ME GO!!!" but Nami replies, "DON'T OVERDO IT, YOU'RE BADLY HURT!!" She dashes down the slope. Usopp calls out, "HEY!" while the tall man in the top hat spots her, wondering, "WHAT'S SHE DOING...?!"