Chapter 128

Dark Blue Moon (2) is the one-hundred-twenty-eighth chapter of the JoJo's Bizarre Adventure manga. It is also the fifteenth chapter of Part III: Stardust Crusaders.

Summary
Joseph Joestar warms Jotaro Kujo that a underwater stand is trying to ambush him inside water. Grabbing the Runaway Girl, Jotaro is saved by Hierophant Green, who brings both back to the boat. The group suspects the girl to be a stand user that tried to lure Jotaro to water on purpose so her stand could attack. She acts as if she doesn't know anything and threatens them with a knife, claiming to be a dangerous killer. Polnareff suggests to throw her back at the sea because she's just playing dumb, Kakyoin worries about her safety from sharks if she ends up not being a stand user, while Joseph wonders how they can make her reveal the truth. Avdol asks how Dio is going in a attempt to make her accidentally reveal herself, but she denies knowing him. The captain of the boat, Tennille, grabs the girl and goes to lock her until they reach the harbor, but ruddely puts out Jotaro's cigarette and scolds him for smoking on deck. Angry, Jotaro accuses him to be the user of the stand that attacked earlier, even though he was introduced to the group by the Speedwagon Foundation and could be trusted. Jotaro tells the group that there's a way to tell apart stand users from ordinary people: When users snif smoke from a cigarette, the blood vessels will be visible on their noses. Seeing that everyone checked their noses, even the captain, Jotaro calls him a idiot for falling on his bluff. The Captain reveals himself to be a imposter who killed the real Tennille and took his place, planning to kill the group one by one, but now was forced to take on all five at the same time. He then predicts he will be able to defeat all of them. The imposter grabs the girl and jumps on the water, because his underwater stand would be on advantage in there, but Jotaro's Star Platinum is fast enough to act faster than the imposter's fall and save the girl. He then asks Avdol to say something, at which the fortune teller questions the imposter about his attitude of predicting something in front of a fortune teller. Polnareff completes the phrase by calling it a foolish attitude, mimicking Avdol and Polnareff's conversation on their earlier battle.