This story is a sequel to Avocation
Life in Ponyville has been relatively quiet recently, which is somewhat surprising, given that the town's librarian tried to usurp the Equestrian throne only a few months ago. Aside from the appearance of a grumpy pegasus who set up shop as a cloudsmith, the aftermath is so unnoticeable that most ponies aren't even aware that the incident happened at all. Unfortunately, all that's about to change, thanks to the return of a certain revenge-obsessed showmare....
This is the fourth story in The Petriculture Cycle; reading the first three stories, which begin here, is highly recommended.
The artwork was provided by Page Turner, and the TV Tropes entry can be found here.
Chapters (3)
Now to read.
Aand it's good.
Seems Penumbra still has Nightmare's personality and attitude.
I lol'd at HTML encoding problems.
gyazo.com/ea97d1863cde02f16298730b33f692b3.png
Oh my gosh!
A continuation of one of my favorite fanfics! 
Great chapter. I can see why Penny was upset considering she probably expected twilight to use the extra power that she obtained from the Nightmare when they separated her.
Again, great start. Cannot wait to see the next chapter.
"before Twilight"
Double space here.
Great story anyway
yeah, I am with Penny here. Why didn't Twi just waste Trixie?
Ive always wondered why the guards didnt come and arrest trixie, she basically commited multiple counts of assualt.
2201888 What guards? There are no guards in Ponyville.
This shall be interesting.
Very bueno.
Haven't read any of the prequels, but maybe I'll give 3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609 a chance...
Well now, that's off to a great start.
fc08.deviantart.net/fs70/f/2011/345/f/a/the_great_and_powerful_trixie_approved_by_ambris-d4ivli5.png
2202276
Good one!
Update: Now added to Read Later list, by the way...!
Ooooh, darn it! I hate not knowing what other characters know! I guess I'll have to track this, then.
More Petriculture?
cdn.overclock.net/e/ed/ed6741f6_Mr_Burns_150x176.jpeg
Proceed!
I'm gonna use my usual fake threat I do when I really like an unfinished story: PINKIE PROMISE TO ADD MORE OR I WILL PUT YOU IN MY MLP WAR STORY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!7 (30 explanation points and a 7 is my way of signaling that the Royal Canterlot Voice is in use
)
I wonder why Penumbra was so mad? Was Twilight not using all of her power? What would happen if she did?
Awesome, another story in this series!
Added to watchlist and /) hoofs up!
I love this series so much, it has to be on my favs list...
Mmmm mm mmm m mmmmmm mmmmmm! Mmmmmmmm mm mmmmmm mm mmmm.
[[Glad to see a fourth story! Penumbra is fiesty as ever.]]
So Twilight, Penumbra and Pinkie Pie all share the alicorn magic that once belonged to "the Nightmare." All three have a degree of shapeshifting ability. Fusion anyone?
Whoop. Trixie, I love you, kid, but the shit is gonna hit the fan reeeeeal soon!
I hate to say this, but PLEASE tell me ur jot having Two pursue Zecora again. And if you do HAVE TO, please let the beusefulness of Zecora's lessons be apparent.
Looking forward to Moer.
Grace and peace, and happy writing.
This is awesome!
you know... much as I enjoy 3.14159265359 it is hard to search for. maybe just call it pi?
Add more or I will use the threat that means I really like your story
ADD MORE OR I WILL PUT YOU IN MY WAR STORY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!7*
*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!7= Royal Canterlot Voice
Seeing that Pinkie is an imaginary friend turned real in this universe, it would explain how she is still alive without her muzzle. As for Twilight, it looks like she would rather be exiled, then reveal her true powers. I liked this duel better than the canon one, though. I look forward to the next chapter.
2201662
Seems to me Penumbra is exasperated that Twilight isn't taking advantage of what she thinks is an obvious solution. I mean, lets be honest- Twilight now has more Unicorn magic than Celestia. Even with the amulet, Trixie shouldn't be able to beat that.
2202276 pi
LOL
Remind me why I don't watch you again, Kwak?
2209490 - I don't know; maybe you don't want your notifications clogged up with my frequent blog posts.
now this one will be interesting in the sense that it is a rewrite of an episode to fit into the storyline of the other three stories.
I'm liking the beginning of this story! And why didn't Twi just teleport back in?
2209836 - I've seen both "hooves" and "feet" used in reference to horse anatomy. Besides, ponies use the word "hand" colloquially, so why not "feet?"
2209858
Eh, okay.
Amazing story. And yeah, it's clear Penumbra thinks that Twilight is simply sandbagging. Probably right, at that.
2205878 That takes the awesomeness away, though!
2203282 She's an alicorn (technically). She could've destroyed Trixie with a thought.
2213706 That depends on how powerful you consider alicorns to be and, how powerful you consider the alicorn amulet to be.
Just finished reading the other stories this morning and I can't wait for the rest of this one!
I didn't notice this existed until this morning. It jumped to the top of my reading list.
It seems that Twilight has a deeper question here than the show's "How do I beat her?", and it is looking to be a relatively long story. I eagerly await an update.
2202276
You haven't read the earlier ones? Stop reading this right now, go read Petriculture, then Inscape, then Avocation, and if you don't come back agreeing that they are some of the best fics on this site, I'll eat my nonexistent hat. Seriously, read them. They're awesome. 
probably most of her powers too...
it'll be interesting to see how this pans out.
Adding to read later pile, due to only having one chapter and my tendency to... Devour your work but-
Could you stop making Pinkie Pie look so goddamn tragic in the cover images? It's starting to become a theme!
for the effect. this should have come out yesterday
2271457 - No, it shouldn't have.
When one lives in Pinkie Pie's head, and calls something utterly ridiculous, you know there's something wrong.
A great chappie, and I look forward to more!
Forget about Pi, embrace the glory of Tau. The full circle damn it!
2271465
i stand corrected...
3.2?
That's your only reason, Twi?
*Makes strangling motions.*
Figures that was why Twilight didn't use her full power. I just can't wait to see everyponies reaction (especially Trixie's) to how much power Twilight actually does have. I don't think slight of hand will be used this time.