The Black Tide could carry the Gray Mist and accelerate, and if they could keep sliding along the Black Tide while blocking the Gray Mist, perhaps under the speed differential, the Gray Mist might separate from the Black Tide.
And if the two never separated, given the intuition of Gu Youyou and the others, they would be more than capable of clearly observing the connection between the Black Tide and the Gray Mist.
Anyway, this bold plan was worth a try!
Zhang Chi discussed with Gu Youyou and the others before they informed the Gui Guis to be ready when they encountered the Black Tide.
Strangely enough, when they deliberately tried to find the Black Tide, they could not. It was not until the middle of the next day that they once again witnessed the combination of the Black Tide and the Gray Mist.
Now it could be confirmed that the Black Tides at sea all appeared accompanied by the Gray Mist, suggesting some kind of transformation had taken place between the two.