One possible plot twist could be that Tom Riddle's dark tendencies start to resurface despite Hermione's positive influence. Maybe he begins to secretly manipulate those around him at Hogwarts while still maintaining a facade of being a reformed child. This could lead to a rift between Hermione and some of her friends who suspect Tom but don't understand why Hermione is so trusting.
Perhaps the biggest plot twist could be that Tom's adoption by Hermione was part of some grander, pre - ordained plan in the wizarding world. It could be that there are forces at work that want to use Tom's unique situation (being raised by a modern - day Gryffindor) to change the course of magic history. This would mean that Hermione and Tom are unknowingly pawns in a much larger game.
A practical answer is Chapter 225, because it turns the idea into a concrete scene. The chapter opens with When Zhao Lang's devastatingly handsome face appeared, all six people..., adds pressure through Alright, it's about time, let's officially get started., and ends on Which big shot is.
If you want the clearest chapter reference, go to Chapter 232. Early on, But soon, she suppressed this strange feeling and slowly began to speak,...; later, the chapter leans on I'm the oldest, so I should get this chance!" "Get lost, I'm the youngest....
If you want the clearest chapter reference, go to Chapter 202. Early on, Jiang Li couldn't believe it, "Just to take a picture?" "Yes, just to take...; later, the chapter leans on If just taking a picture could earn thirty points, it was indeed worth it..
The best chapter pointer here is Chapter 254, "Madwoman! She is definitely a madwoman!". It opens with Just when everyone thought that Jiang Yan wouldn't last long and would... and closes on A Jiang Li whose head was only filled with books and who never joked or....
Chapter 252 is the strongest chapter-level answer because it starts from In fact, Jiang Yan's shirtless appearance this time was entirely Jiang... and follows through on Aren't these few days supposed to be solely my spotlight time?" Camera....
Look to Chapter 224 for the clearest answer. It begins with Jiang Li, ranked number one, was directly taken by the staff to an elegant..., keeps building through The building had two floors, decorated in an elegantly serene manner,..., and lands on After all, the fans of Su Yinwan next door had.
If you want the clearest chapter reference, go to Chapter 214. Early on, Director Sun fell silent for a second.; later, the chapter leans on You know, you're right." Jiang Li: "...." Now, even the audience began to....
The best chapter pointer here is Chapter 266, "He Really Deserves to Die!". It opens with Upon hearing this, the deputy director's expression also turned serious. and closes on Now I see why Jiang Li despises her brother so much, utterly unreliable!"....
If you want the clearest chapter reference, go to Chapter 256. Early on, Turning around, Jiang Yan and Zhao Lang found their heads had been...; later, the chapter leans on Both men were already tall and imposing figures, and dressed in brightly....
The best chapter pointer here is Chapter 237, "Top of the Three Lists! Truly Deserved!". It opens with It seemed as if, believing the spilled water couldn't be recollected, Ah... and closes on The netizens responded in chorus, and no one insisted on forcing Jiang Li....