One Piece Chapter 4, page 9: Chapter 4: The Great Captain Morgan

Morgan mentions he heard a "little mouse" snuck into the parade ground. Helmeppo admits he "dealt" with her, and Morgan assumes she was killed. When Helmeppo stammers that she was just a little girl, Morgan coldly orders Lieutenant Rokkaku to find and execute her, declaring, "Child or not, anyone who defies me must suffer the penalty!" Rokkaku bravely refuses to obey such a cruel order. Morgan menacingly reminds him of their ranks, asking, "And I-- a Captain-- am your superior officer, am I not?"