A/N: Hi guys. This is my first fanfic, so please be nice. Enjoy!

Edited May 2017.

Prologue: The Discovery

August 31, 2017. George Weasley cast one last glance at his shop, Weasley's Wizarding Wheezes. The windows were dark — he had just locked up for the night. He then turned on his heel, disapparating.

Unlike the dark windows of the joke shop, the windows of the Burrow were lit up warmly and invitingly. Inside, a kind of farewell party was happening for Harry and Ginny's son, Albus, Hermione and Ron's daughter Rose, and George and Angelina's own children: the twins Fred II and Roxanne.

Molly Weasley handed the four children-of-the-day a parcel each, and they opened them excitedly. She had gotten Albus a miniature figurine of himself, zooming around on his Nimbus Three-Thousand inside a larger green oval representing a Quidditch pitch. For Rose, an assortment of quills, each sequinned and flashing different shades of different colours, and Roxanne had gotten the equivalent in hair clips. Finally, Fred ripped off the paper to…

… a leather bound journal.

Stuffing down his disappointment, the eleven-year-old smiled up at his grandmother. "Um, thanks, Gran!"

Molly must have sensed something, for she said to him, "I think your father can figure out that journal better than I can, and what kind of… secrets it might just contain." She pushed him towards his father, who was watching them from the couch.

"What did she mean?" Fred asked him.

"Hmmm… I don't know. Open the journal and let's see."

As it turned out, the journal contained a page and date for each day for one year at Hogwarts, from September 1st onwards. After the date, there was a line saying What's Happening Today?

"Let's fill those in," George suggested, pointing to the lines. Fred nodded, and he handed him a quill.

"How'd you get that, Dad?"

"Magic."

Fred giggled and put quill to paper. On September 1st, the first entry, he wrote Hogwarts Express, Arrival, Sorting. Suddenly, below what he had written, elegant cursive appeared, saying:

Hogwarts Express What-to-do:

1. Hide in the trunk rack of an empty compartment and jump-scare the first student who comes in.

2. Find a Hufflepuff student and ask them why the are covered in bees.

3. Tell as many first years as possible that your parents had told you that the Sorting consisted of troll-wrestling.

Fred stared at the paper in shock, then slowly started to giggle. Called over by the sound, Roxanne came to see what was happening. Fred just pointed at the page, and she started laughing too. Soon the rest of the cousins had seen it as well.

George quietly disentangled himself and walked over to his mother, who was watching the proceedings in satisfaction. "Mum, why do some of those suggestions seem familiar?"

Molly smiled. "Harry once told me that Ron had told him that the way to get into Gryffindor was to fight a mountain troll. I investigated. Apparently he had gotten this from the two of you, as had seven other first-years who wanted to get into Gryffindor but didn't know what happened during the Sorting. As for the others, my brothers, Gideon and Fabian, nearly got concussion doing the first suggestion."

"It seems you've been working on this for a while," George said wonderingly.

"Indeed. Oh!" Molly reached into her purse and rummaged around for a bit, enabled by the Undetectable Extension Charm, then brought out a tattered old textbook-style journal. "I've been meaning to give this to you for a while now, but this is the first chance I've had." She handed it to him.

George took it in interest. "And this is..?"

"Take a look yourself." Molly winked at him, a surprising action from the elderly lady in itself. "I think you'll enjoy this."

His interest piqued, George took it to one of the armchairs and peered and the cover. The ink was old, but still legible. Molly Weasley's Prank Journal: a record of Fred and George Weasley's practical jokes while at Hogwarts. He raised an eyebrow in anticipation. This would be... interesting.

He opened the book to the first page. The layout of it was the same as Fred's new journal, but the whole book was much thicker. He suspected the one his son received was meant for just his first year, whereas this appeared to be an exhaustive collection of seven years.

Well, here starts a trip down memory lane. George began to read.

A/N: Review! Bye!

Note May 2017: This was only edited, not revised, so the story is the less, without (as many) mistakes. Hopefully better for any new readers! —Rose