Last story of the year, whoo-whoo! Goodbye, 2017, and hello, 2018! Happy New Year's Eve, everybody! -Traveler.
-Epilogue-
Albus Dumbledore was so much weakened that night, so he passed away during the next day. Minvera was happily secured in her transfiguration professor position, as Zappy, Remus, and Velma became headmasters and headmistress of Hogwarts, with Winnie as the sorceress. Zappy was the one who did the logical work, while Remus did the paperwork, and Velma did the business end.
Sirius became the head of Gryffindor, while Shaggy became the head of Hufflepuff, with Sprout as teacher of Herbology, Flitwick kept his head job in Ravenclaw, and remarkably refused to give up his charms professor job, and with a quickly-made potion, Severus's infamous mark is vanished, and Severus was so happy, so he kept his head job, leaving his potions professor job to Narcissa Black who divorced Lucius Malfoy with the permission of Sirius.
Zappy, Remus, and Velma destroyed the Ministry, yet the Wingnemont still existed, yet changed for the better. The viewer seats disappeared, giving way to new seats and extinct seats where muggleborns, halfbloods, and purebloods found to belong after taking the ancestry bloodline test which is primary for everybody to take, thanks to the trio's new rules.
The curse on the Defense job was removed, and with the spirit of Voldemort erected from the body of Quirrell, and the diary Horcrux found, Severus had the honor to kill him in vengeance for Lily Potter, and so Severus is now in the new line of Prince-Slytherin, and Headmaster soon after, joining the trio, working upon the transportation issues.
Hogsmeade got bigger and better, while Diagon Alley got a few more businesses. Of course, Mystery Inc. couldn't refuse to stop solving mysteries. Shockingly, Shaggy defeated the werecats when they threatened Zappy and Winnie. Over time, Shaggy and Scooby found Crystal and Amber, and with much convincing, Zappy was delighted to have a mom in Crystal, and Scooby was happy to be with Amber after getting married a while later.
Much later, Zappy married Winnie after some years of dating, Daphne married Fred, and Velma found a husband in Severus, surprisingly. Ariel got sorted into Slytherin. All the familiars became protectors of Hogwarts. So altogether, the family of Zappy, his friends, Hermione who's married to Neville, and the wizarding/mundane world is living happily in peace.