Years ago, Daring Do discovered an ancient city, forgotten in one of the farthest reaches of Equestria, and within it a mysterious lock that could not be opened by a single pony alone. Frustrated and eventually defeated she was forced to abandon her find, willing time to absolve her of her failure.

Not too long ago, she met a pony named Rainbow Dash. A pony who helped her.

Now old memories are rekindled when Daring learns that a longtime rival has uncovered the city's location. Forced into action, she sets off on a race against time to beat her competitor, and finally learn the secrets it undoubtedly holds. But this time, she'll succeed where she failed all those years ago. This time, she'll have help.

This story is a sequel to Better Living Through Science and Ponies

THIS STORY IS CURRENTLY BEING REWRITTEN. PLEASE READ:
I've decided to rewrite this entire story. Considering that I began this project with almost no creative writing experience, I was bound to make some pretty bad mistakes. The story flow is not well organized, and there is an unhealthy amount of redundancy and poor pacing, as well as some pretty important things that I should have included. I intend to address these issues to the best of my ability, but it will be a long and arduous task. This story means a lot to me, so I want it to be more than the mere amateur mediocrity that it resembles. So, give it a read if you want, but keep in mind that it will change. I recommend that you put this on your read later list in the meantime.

This is a Portal 2 crossover. If you haven't played Portal 2, please do that first. Then read the prequel if you haven't done that either.

After Chell finally escaped the confines of Aperture Science, a freak portal mishap down below transported her, along with the entire Enrichment Center, to the land of Equestria. Upon entering this world, she was transformed into a pony. In a strange body and in a strange land, Chell was fortunate enough to be accepted by the ponies of Ponyville, and she lived out a new life contently among the ponies.

But that peace was not to last, for GLaDOS took a particular interest in the ponies of Equestria, and after two weeks of preparation, she launched a surprise attack and kidnapped 300 ponies to serve as test subjects, including Chell's friends and the princesses themselves. Once GLaDOS had them, she subjected them psychological torture. To save her friends, Chell made her way into the one place she hoped never to see again. In doing so, she freed the ponies, defeated GLaDOS in battle, and helped bring about the destruction of the facility. Although this made Chell a hero, she paid a terrible price in that brutal fight.

Beaten, battered, and traumatized, Chell spent months recovering from her wounds. After returning home from the hospital, all she wants is to once again live a normal life in Ponyville, but to do that, she must first heal from her wounds, both physical and psychological.

At the same time, GLaDOS herself has survived Aperture's destruction. With nothing left but herself, she vows to get back to testing. Though she faces an uphill climb, she is determined to see her facility rebuilt and the testing resume, and will stop at nothing to achieve this.

Has a TV Tropes page (will need to be updated after rewrite)

The works that this fanfiction is based on are properties of Hasbro and Valve. I would like to thank Pen Stroke for writing the original story and Flyer for his assistance and advice.

Please note, this is an unofficial sequel. I have received permission from Pen Stroke, but it is not canon to the original. I hope you enjoy it, but keep in mind that this is a fan work (of a fan work), and Pen Stroke holds the rights to the original story.

==Originally written spring 2011== Equestria Daily Post==
GLaDOS is free of Chell, free to continue testing, when she discovers a portal gun Wheatley tried to repair with duct tape. When the portal gun catastrophically fails, the enrichment center, GLaDOS, and Chell are literally dropped in the middle of Equestria. The mute test subject soon finds the world of ponies far more welcoming than the human world. But GLaDOS sees possibilities. Let the testing begin... for science.

MLP/Undertale crossover.
Not a PWNY-verse story.

Long ago, the Monsters and Humans fought a great war. The Monsters lost, and were sealed in the Underground. It would take the power of seven human souls to break the barrier that kept them imprisoned. They only had six. And so the Monsters waited and hoped, praying that another human would find their way to the Underground. Some thought the seventh soul would give their King the strength to break the barrier. Some dreamed of a human who would be their friend, and save them all...or had nightmares of one who would bring back the war.

...but nobody came.

...but somepony did.

Eons after the war, with no way to tell how much time had passed above, a tiny blue filly with wings and horn fell into the underground, calling for her Mama. None knew the poor creature's nature or origins...but her soul was powerful with magic, even more so than a human soul.

None can know what will come...of this little 'Woona'.

Cover art by Sanyo21

A few days after the Nightmare Moon Incident, Spike awakens to find Twilight acting a little...odd. Or odder than usual anyway. All of a sudden she's being all motherly, sure of herself in ways she's never been before, and even more outgoing.

But…it’s kind of creepy how she just seems to know everypony’s name, or their habits, and even some stuff nopony else should know.

But she's still good old Twilight...right?

Featured 5/28/2014

Monster attacks. Crime. Illegal hallucinogens made from electric fruit.

They say things didn't use to be like this. They say things were different, before Luna came back 60 years ago, but Detective Hard "Hardy" Boiled of the Detrot Police Department has never known any world other than that demarcated by the seedy streets of his beloved decaying metropolis; a world in which the coroners sing and dance, surveillance bugs have personality disorders, and the Chief of Police is a scarier entity than most of the eldritch things the city attracts.

The grey unicorn who turned up dead outside the posh High Step Hotel seemed like just another case, but her missing horn is the pointy tip of a very large and nasty iceberg. It's up to Hardy and his friends - a rejected monster hunter, a psychic cab driver, and an underground antiques heir - to find out what’s going on in an investigation that promises to stick more than a cupcake into the very eye of Detrot.

Especially if Hardy has anything to say about it.

By Popular Demand, there is now a Patreon

Additional editing by coandco Sig_Awesome, Hinds, Clint, and Raccoon!
Featured on EQD - 5 Stars!
Cover art by MisterMech (http://mistermech.deviantart.com/)
Now with TVTropes page here!

[First Person] [Alternating Perspectives] [Equisverse Era 1]

(Gore tag is for descriptive combat scenes.)

Many years after the changeling attack on Canterlot, in a land far from Equestria, Chrysalis Swarm returned to it’s former strength. The swarm of vicious bandits cut a swath across the land with twice the cruelty of the time before their defeat. Countless cities, towns, and even other changeling hives fell to their cruelty and lust for power.

Amongst them was the Diamond Hive, a peaceful people of ancient and storied past. The only survivor of her people’s slaughter is a young changeling scout named Jade. With nothing save a satchel of emotion-charged stones, her mother’s sword, and a map in the form of a riddle, Jade must now journey to the one place Chrysalis's was unable to terrorize, Equestria.

The Kingdom of Equestria, a place thought to be nothing more than myth. A place where the streets are made from gold, for the very sun and moon make it their home. Only there can safety be assured, and only there can a changeling find enough love to enter her final stage of development, become a queen, and ensure her people survive once more.

Featured on Friday, September 25th, 2015 at 06:33:29 PM UTC.
and again on Thursday, November 19th, 2015 at 01:05:13 PM UTC.
and yet again on Tuseday, January 12th, 2016 at 08:26:19 AM UTC.

For my fan’s convenience: This story takes place in an alternate timeline of the Equisverse. No storyline beyond that of The Bridesmaids, Horseshoes, and Dinner at Ravenloft happens or will happen in this timeline. However, some world events, elements of the setting, and concepts from other works of mine apply, but this only pertains to concepts such as thaumaturgic current. This is the more “serious” timeline.