One Piece Chapter 5, page 3: CHAPTER 5: THE KING OF THE PIRATES AND THE MASTER SWORDSMAN

Back in the courtyard, Koby is desperately trying to untie Zoro from the execution post. Zoro, exhausted, tells him, "NOW GET OUTTA HERE! THEY'RE ON THEIR WAY DOWN." Koby pants, "BUT... I HAVEN'T UNTIED YOU..." Zoro insists, "DON'T WORRY ABOUT ME. I JUST HAVE TO SURVIVE THE MONTH AND THEY'LL LET ME GO." Koby yells back in frustration, "WHAT ARE YOU SAYING!? THAT IDIOT PROMISED ME! IF I SURVIVE HERE FOR A MONTH, I'LL BE SET FREE!!" Koby reveals the terrible truth: "YOU'RE GOING TO BE EXECUTED THREE DAYS FROM NOW!! THEY'RE NOT GOING TO LET YOU GO! SO JUST BEAT IT--"