This Is A Story You'll End Up Lycan
The Everfree Forest is a wild and dangerous place known all around Ponyville, Canterlot, and all of Equestria, pretty much. According to numerous ponies, the Everfree Forest doesn't work like the rest of Equestria does.
"It ain't natural," claims Applejack, a hardworking Earth pony, also representing the Element of Honesty, "the plants grow..."
"The critters care for themselves," Fluttershy, the Element of Kindness, states.
"And the clouds move," completes Rainbow Dash, the Element of Loyalty.
"All on their own..." All three ponies state.
To an extent, they are true, all three of them. The Everfree Forest doesn't work naturally like the rest of Equestria does, but the reasons these three ponies state isn't technically true. I mean, it is true, but the explanation is slightly off. Nothing moves on their own in the Everfree Forest, nothing at all. Everything responsible for moving, growing, living, and thriving within the Everfree Forest only does so because of the Tree of Harmony, the original place where Princess Celestia and Princess Luna found the Elements of Harmony long, long ago. The Tree of Harmony's magic is what is responsible for keeping watch over the Everfree Forest.
Either way, the Everfree Forest is the sight of many different creatures, creatures that are not seen anywhere else in Equestria. Some of these creatures haven't even been discovered yet, while others, such as timberwolves, have proven to be vicious, deadly beings. It is within this forest that our story begins.
Princess Twilight Sparkle, or as her friends know her, Princess Twilight, the vampony. Princess Twilight has come flying over here by herself in order to take care of the epidemic that's happening for a second time in Ponyville.
"You have nothing to worry about, Twi," her friend, Rainbow Dash, assured her.
'You have NO idea, Dash,' Twilight said to herself, 'no idea, whatsoever...'
Not too long ago, Twilight's fuse had bursted, courtesy of Rainbow Dash, and was driven into driving her own fangs into the neck of Rainbow Dash, infecting her and transforming the Element of Loyalty into a vicious vampony herself. It wasn't too long before that where an outbreak of vamponies were taking over Equestria, and it was up to Twilight to revert everyone back to normal, an the only way to do that was to kill the head vampony, which, at that time, was Rarity, the Element of Generosity.
Twilight, after much consideration and heartache, did manage to kill Rarity, striking her horn through Rarity's heart, and reverting everyone back to the way they were. Everyone, except Twilight, that is. Upon doing what she did, Twilight unfortunately became the new head vampony and took over Rarity's job, though everyone who was a vampony had transformed back to the way they were.
Fast forwarding a bit, Rarity was given a second chance at life, thanks to some unknown magical aura and/or force, and was allowed to keep living her life normally, though she did sympathize with Twilight, apologizing for her actions and for passing on her burden to the Princess, the Element of Magic.
A couple of days later, Twilight returned home after catching up with her brother, Shining Armor, and her sister-in-law, Princess Cadance. Upon arriving home, Twilight made it clear to all of her friends that she wanted to keep this burden and any and all events that happened before as quiet as possible, choosing not to showcase it to anyone, ever. Rainbow Dash rebelled and claimed that that would be easy, though Twilight immediately assured Rainbow Dash that it would prove to be a tough task to perform.
Some other words were spoken between the purple alicorn and the cerulean Pegasus before Twilight challenged Rainbow Dash to see just exactly how hard it is to stay as normal as the next pony in line. Rainbow Dash gladly accepted this challenge and Twilight regretfully infected her.
Not even an hour later had Rainbow Dash gone insane and was infecting everyone she saw, so Twilight told her little baby dragon assistant, Spike, that she loved him, that she loved everyone. She said goodbye to him and flew off to a nearby cliff, which the closest one was located inside the Everfree Forest. She threw herself off the side of the cliff and started tumbling down to the ground below, removing her from society and lifting the dreaded infection and vampony curse from everyone.
Unfortunately, that involved Twilight having to commit suicide in the process and this is where the story truly begins.