This story is a sequel to The Mailbox Compilation

Rarity has had a horrible summer. She was invited to Baltimare to make costumes for a local play, inadvertently caused a citywide riot, and that was only the start of her problems. Now she is coming home, intent on seeing the one pony who might be able to bring a smile back to her face.

Co-written by the wonderful and talented xjuggernaughtx

Edited by Squinty Mudmane and Setokaiva

Cover art by REPLAYMASTEROFTIME

Part of the Mailboxverse.

This is Equestria. But something went differently this time. The Everfree is even more out of control, and has become a breeding ground and nesting place for thousands of dangerous creatures. With so many new threats constantly changing, evolving in the darkness, no one knows what the next monster could be capable of. In such a world, the Unknown means Danger.

Meet Pinkie Pie. She's an earth pony who likes parties and making everyone smile. She's very, very good at it.

That's a bad thing.

You see, some of the things she does are... strange. Unnatural. Sure, parties may be her special talent, but that doesn't explain where she got a cannon that can decorate a room. And it doesn't stop at parties. There's something unnatural about that mare. No one can explain it.

Pinkie Pie is an Unknown.

Unknowns are dangerous.

Princess Celestia has taken the poor pony under her wing, and raised her away from unfriendly eyes, allowing her to live what approaches a normal life. Soon, Pinkie will be reintroduced to the world at large, starting with a little town called Ponyville, on the day of the one-thousandth Summer Sun Celebration.

Let's see how that goes.

Pinkie doesn't tell ponies about Pinkamena and Surprise. The doctors said that they were bad for her, that they were a disease, but she disagrees. Sure, Pinkamena's a bit of a grumpy-pants, but she's still a great friend! She's often the voice of reason to counter-act some of the other two's crazier ideas, after all. Surprise, on the other hand, is a great prank-player, and always up for some fun. She's more like Pinkie, only more hyper. Both are great fun to be around, and they get on well.

Thing is, she knows that if she told ponies about them, then they would be dragged back to the hospital. And then be 'treated' again. None of them want that. Because of this, not even her best not-in-head friends know about them. The three of them have, for years now, been careful enough to keep the existence of Pinkamena and Surprise secret.

This has, of course, gone out the window now that Twilight is hammering on the door after overhearing one third of a conversation, with no sign of anyone else talking.

Hints of F/F shipping inside. Nothing will actually come of it here, though. Maybe in a future story.

Cover art can be found here: http://killryde.deviantart.com/art/Smile-338206490