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18 Fascinating "Harry Potter" Book Facts That Were Unfortunately Never Mentioned In The Movies

Did you know that Hermione founded an organization that fought for the equality of house-elves?

We asked the BuzzFeed Community to tell us the most fascinating facts from the Harry Potter books that were never mentioned in the movies. Here are the interesting results.

1. Harry actually returned the Elder Wand to Professor Dumbledore's grave at the end of Deathly Hallows.

Harry holding the Elder Wand after The Battle of Hogwarts

2. Voldemort's mother gave his father a love potion, which is why they ended up together and how Voldemort was conceived. This is the main reason Voldemort could never love anything.

Voldemort in shock after Harry doesn't die in "Order of the Phoenix"

3. Hermione founded S.P.E.W. (the Society for the Promotion of Elfish Welfare), which fought for the equality of house-elves in the wizarding world.

Hermione successful doing the Wingardium Leviosa spell in class

4. During the Battle of Hogwarts, Professor Trelawney catapulted crystal balls at Death Eaters to defend herself.

Trelawney approaching Ron, Harry, and Hermione's table during class

5. Professor McGonagall also transformed desks to stampede toward the Death Eaters. She used this transformation spell most notably in Sorcerer's Stone when she turned desks into pigs.

McGonagall telling Molly Weasley she always wanted to perform a spell during The Battle of Hogwarts

6. Marietta Edgecombe was the one who snitched on Dumbledore's Army to Professor Umbridge and Filch, not Cho Chang.

Cho Chang and Harry Potter alone together after practicing with Dumbledore's Army

7. In Sorcerer's Stone, Fred and George enchanted snowballs and repeatedly hit Professor Quirrell in the back of his head with them, which means they were hitting Voldemort directly in the face.

8. During the visit to Godric's Hollow, Harry put his hand on the gate outside of his parents' cottage and a sign appeared from the ground, covered in messages in support of Harry.

Hermione and Harry in Godric's Hollow in front of Harry's parents' house

9. Petunia actually wrote Dumbledore a letter when she was a kid because she so desperately wanted to attend Hogwarts.

Petunia scolding Hagrid in "Sorcerer's Stone" and Dumbledore speaking at Harry's hearing in "Order of the Phoenix"

10. In Order of the Phoenix, Hermione and Ron were appointed as Gryffindor Prefects.

Ron staring at Hermione while they play piano together

11. Just before Dumbledore was killed by Snape, he immobilized Harry and threw the Invisibility Cloak on him.

Dumbledore looking down at Harry just before he gets killed in "Half-Blood Prince"

12. Teddy Lupin — Lupin and Tonks's son — was raised by his grandmother Andromeda Tonks. He eventually befriended Harry and went to his house a few times a week for dinner.

Tonks and Lupin dead on cots during The Battle of Hogwarts

13. After Amycus Carrow spat on McGonagall, Harry used the Cruciatus Curse on him.

Harry fighting Voldemort in "Deathly Hallows"

14. In Deathly Hallows, Fred, George, Lupin, and others ran a secret radio station that could only be heard if you knew the password. This way, everyone could communicate safely with one another.

Harry holding a radio near Ron while Ron sleeps

15. Rita Skeeter was an Animagus. She transformed into a beetle and sneaked around to collect information for her articles, which is why they were always so "juicy."

Rita Skeeter standing in-between Cedric and Harry in "Goblet of Fire"

16. Dudley and Harry actually had a heart-to-heart in Deathly Hallows, and Dudley thanked him for saving his life.

Dudley bullying Harry in front of his friends in "Order of the Phoenix"

17. The Ministry of Magic could never tell who was casting spells in heavily populated wizarding residencies. That was why young witches and wizards were able to use magic during the holiday break away from Hogwarts.

An aerial view of the ministry of magic

18. And Neville Longbottom was born a few hours before Harry, making them the two infants in the prophecy against Voldemort. Neville could've been the Chosen One, but Voldemort chose to target Harry instead.

What do *you* think is a fascinating fact from the Harry Potter books that more people should know about? Let us know in the comments below!

Note: Some submissions have been edited for length and/or clarity.