Anybody knows what chapter of the novel this recent chapter ends in?

Okay so just a heads up, this recent chapter in manhwa is chapter 343 in the novel BUUUUUUUT..... the thing is, they skipped something from the manhwa. 'Cause you see, after they made and eat the Plum Blossom Pill, there's an event that they would go to.... (I'm not gonna spoil what the event is because I'm not sure if they are skipping it in the manhwa or would show it later after this whole elder runaway thingy) but if I were you, I'd start reading at chapter 249 of the novel then you'd understand. Istg you won't regret it.