What are the inconsistencies or mistakes in the Harry Potter series?

86 vulnerabilities in Harry Potter: /f? Kz= 174752998 This was put forward by an adult dglyk007, and there are many powerful explanations behind the post. The following are ten excerpts: 1. Since underage wizards are not allowed to use magic outside school, why did Hermione use magic many times on the train to Hogwarts? (See the chapter "Dark Mark" in HP4 for details. Hermione used "fluorescent flashing". There is also a conversation between Ron and Malfoy on the train. Ron broke the glass when he closed the door, and Hermione used the spell of "repairing as before". )

In HP2, Ron mentioned Fred (is it Fred? I don't remember. Hee hee ... According to the calculation, Ron is two years younger than Fred and George. Fred was five years old. So, my question is: can Fred know the magic of the transfiguration spell when he is 5 years old? Turning a teddy bear into a spider should be a transformation spell! Even if Fred can use this transfiguration spell, I think it is very impossible. Because Harry, in the first grade, it was difficult for them to turn matches into simple magic such as needles. You know, Harry, they are all 1 1 years old! ! ) Didn't he get a warning from the Ministry of Magic? (Obviously, the twins were underage at that time)

3. In HP 1, Aunt Rowling said that Harry is a pure wizard-because both Zhan Mu and Lily go to school at Hogwarts; In HP2, Aunt Rowling also said that Harry is a half-blood wizard-because Muggle Lily found a wizard husband; In HP5, Aunt Rowling once again let Harry see Lily and Zhan Mu at Hogwarts in the pensieve, which shows that Harry is a pure-blooded wizard. So, is Harry a half-blood wizard or a pure-blood wizard?

4. In 4.HP5, Aunt Rowling seems to have forgotten to say which college won the College Cup.

5. What happened to Sirius? Why doesn't he want to be a ghost? Wouldn't it be nice to be a ghost watching Harry?

6. According to the book, the Dursleys should hate everything in the wizarding world, so why did they send Hedwig to give Harry a present in the Christmas chapter of HP 1? You know, it's a wizard's custom for owls to give things!

7. The penultimate line on page HP2 91-"Gryffindor deducted five points!" . Percy is still the prefect. In the middle of page HP5 409-"Only teachers can deduct points from the college" ... "I know that prefects can't deduct points, King Weasley." .

8. To verify whether Sirius is a death eater, you can see if there is dark mark on your arm. Why bother?

9. On line 6 of page 75 of HP3, Snape said, "... Do you just need a drop of mouse bile? "If you are a wise man, you will know that mice have no bile, so where do they get bile? !

Snape and Filch of 10 and HP 1 all know bad things about Quirrell. Dumbledore trusted Snape, so he must also know Quirrell's bad things. But he didn't stop Quirrell's plot to seize the philosopher's stone, but let Harry go, which may not be too risky.

Hermione's exam schedule is at 1 1 and HP3:

9 o'clock, arithmetic divination /9 o'clock, metamorphosis.

lunch

1 point, spell/1 point, ancient magic.

If Hermione has a time converter to realize all these contradictory schedules, what about other students? Transfiguration class and spell class are the same compulsory courses as potions class, which means that all students who study arithmetic divination and ancient magic books have the ability to sit in two examination rooms at the same time. There are only two possibilities: (1), and Hermione is the only one who chooses arithmetic divination or ancient magic books. (2) Everyone who chooses arithmetic divination or ancient magic scripts has a time converter like Hermione. It's hard to do both, so ...