Princess Twilight Sparkle took the Equestrian throne several years ago. Anon, her human friend, works at the castle as an advisor for her. However, lately he has been disappearing right after work, and Twilight is curious as to why. On top of that, he isn't the only one acting strangely, as her mom has been acting very dodgy around her too. Twilight has some suspicions as to why this is.

Sire's Hollow is a quaint little town not too far from Ponyville. Anon would never have any reason to set foot in the place were it not for his best friend, Sunburst, asking him for a massive solid:

Keep his mother, Stellar Flare, preoccupied for a few days while he conducts research on the town's recently discovered magical properties.

Sunburst loves his mom, and they've worked through their communication issues before, but as head of the Sire's Hollow Development Committee, she would never approve of the tests he intends to run. So, Anon will act as a "distraction," allowing Sunburst to get done before she notices.

He does a better job than either of them were expecting.

Richard ‘Bob’ Yortz, was halfway through highschool before he ended up in Equestria. Left with no other options, he spends a year as an elusive creature, stealing food and hurting ponies in order to survive. After catching the eye of Princess Celestia, he is shipped off to Ponyville with the chance to ‘redeem’ himself.

A few years ago, a rumor surfaced that I creature of tall statue and thick clothing, made himself home in a cave on top of a mountain. He would offer insight into future events in exchange for food, as a tribute to his divine knowledge and has been known as The Oracle ever since. For years he has given out knowledge sparingly, now Princess Celestia, Luna, and Cadence have made plans to visit him, but Celestia’s question might be a little risky, but curiosity is killing her.

When Twilight and Spike meet the sad and real Pinkie Pie at the table outside, Spike makes a test based on his memories of 'Party of One'. Pinkie Pie passes the test at that time, and this results a completely different outcome for the whole story.

In this version, there will be no Pinkie clone genocide.

An invasion of Pinkie Pie doppelgängers threatens all of Ponyville. But Twilight is confident that she has a great plan to deal with the problem. What could go wrong?

The original fanfic by me is posted on Russian-language resources:
https://ficbook.net/readfic/018cb4b5-4574-7a19-a6bc-c1406113c569
https://ponyfiction.org/story/17537/
Translation into English was done by:
https://www.fimfiction.net/user/535037/oranzinispegasas

A suicide right by the school of friendship.
Why would someone do that when there was help so close?
Twilight can't let this go as just a tragic incident. There has to be a reason.
*UPDATED*
I just added some detail and fixed a couple small problems. The story itself is unchanged.

Equestria has always been ruled by two Princesses, but that's not always been the case, has it? Even years after being freed from exile on the moon, Luna feels that her place is no longer in Canterlot. Perhaps it's time for a change. Perhaps it's time for something...radical. Perhaps it's time to quit.

Your friends in Ponyville were quite shocked when your relationship with Marble Pie became public. They were even more shocked when she moved in with you and immediately became just another member of the community, all without saying a single word. To most of them, it can be hard to have a conversation with her.

To you, it's the easiest thing in the world.

Twilight is the new Princess of Equestria, and she's hosting her first Grand Galloping Gala. Celestia joins her, and Twilight asks her why she and Luna stepped down as Princesses. Celestia decides she's ready to answer.