After a tragic accident, Miss. Cheerilee is left sick and can't teach her class. Pinkie Pie decides to take over the class temporary for the day and teaches them all about Physics. Will this be a normal lesson or something crazy from the party mare.

Twilight Sparkle decides to try a special herb the Cake's procured from Zecora, originally used to make Pinkie Pie less... hyper.

Done purely for comedy!

When Rarity has Twilight over for tea, she learns her friend has a big confession to make. But what is really going on here?

Twilight Sparkle finds a book in the library.

Twilight Sparkle reads aforementioned book.

Twilight Sparkle's life is thrown upside down, her view of her teacher shattered, and her friends pitted against each other.

Everything will return to normal.

One of these statements is false.

Nightmare Moon won the first battle, but luckily the Elements of Harmony turned into guns.

The Cutie Mark Crusaders, frustrated with their lack of success, begin searching through Twilight's library in an attempt to find out more information about cutie marks themselves in the hope that they will finally understand the way to get their cutie marks. However, the trio runs across an ancient book containing evil spells and they attempt to get their cutie marks in the worst way possible...
Cover art by http://sniper-bait.deviantart.com/

Now with its own TV Tropes page! http://tvtropes.org/pmwiki/pmwiki.php/FanFic/TheCutieMarkCrusadersBringAboutTheApocalypse

When Pinkie Pie starts to become a tad overweight, and all her friends notice it, she is forced to do one thing she has never done in her whole life.... She has to go on a diet. It's just a small sweets diet. She can go a couple weeks without her regular amount of sugar.... Right? Actually, no. She can't. But she can try.

I'm Griffin, not much else to it. I've been bullied most of my life, which left me bitter and sarcastic. I'm a closet brony. What? You think I'm just gonna go out and tell a world that hates me that I watch a cartoon intended for little girls? I don't feel like giving the punks at school any more ammo. That's when cosmic powers decide I need to take a trip to my favorite fantasy land. But all is not sunshine and rainbows and it certainly won't be after I'm done with it. Equestria from the point of view of an extremely pissed off teenager, with a twist. Rust, the author of 'The Ballad of Echo the Diamond dog' is awesomesauce enough to have a cross over between our stories. Carnelian is a boss when it comes to art. Part of the 'Chess Game of the Gods'.

Violence, gratuitous swearing, and sexual themes. Reader discretion is advised.

Meet Diamond Tiara. She’s a stuck up earth pony who’s been given whatever she’s wanted whenever she’s wanted it. Her life has everything: riches, luxury, ease, and most of all, her best friend Silver Spoon. With the school year over it seems like Diamond Tiara is set for the best summer ever! Of course, that is, until her big sister comes for a nice, long visit to Ponyville…

Throughout all of history, one concept has kept both the written and spoken word from becoming an unintelligible mess. That concept is that most holy of grounds known by some as "grammar." It sets down rules for language to follow, and keeps it free of distortion.

Yet something is wrong. The rules are failing. And only one pony so much as suspects that something is wrong. Something that goes deeper than a simple appearance of errors. Something that could be an attack on the very root of language itself.