What are the ingenious foreshadowing and details in Harry Potter?

I have watched Harry Potter several times, and I feel different after watching it every time. This time, I found some clever foreshadowing and details.

First, Chapter 10 of Book 7: The Story of Kreacher.

Kreacher couldn't tell his story to others (especially Ray Guller's mother) before, because Ray Guller forbade him to tell his family about the cave (pay attention to the word "family"). This cave covers all possible owners in Kreacher, but Ray Guller didn't expect Sirius to leave Kreacher to Harry after a long time. It is because Harry is neither a family member nor the master of Kreacher that Kreacher told this story.

The second part is the fifth chapter 18: Dumbledore's army.

Zhang Qiu was named DA (Defense Association), and Ginny interpreted DA as Dumbledore's army. So basically, Linda is named after Harry's two girlfriends. Leadership is really different.

The third chapter is the second chapter 1 1: Duel Club.

After a brief look at Snape, Harry concluded, "The goods know that I threw the bait." Of course, we didn't know until the fifth part, and there is another trick to look at the soul.

The fourth chapter is the first six chapters: the journey from 93/4.

Ron showed Harry how to turn the stain yellow. "Daisies, cream and sunshine turned the silly mouse yellow." But it failed. Is it because Ron is not strong enough Not necessarily, because Scabber is not a mouse.

The fifth is chapter 8: Potions Teacher.

How many points did Snape deduct from Gryffindor when he bullied Harry for the first time? 1 min. Judging from the deduction of 5 points, 10 or even 50 points in the following films, Severus was quite kind when he first met Harry. Inflation kills people.

In fact, there are many potential foreshadowing and details. If you are interested, you can go and see more. Ok, welcome your comments.