This story is a sequel to My Little Mages: Anima Gaea Semperlibera
Not long after the Fall Equinox, and Starlight's award ceremony, Sunset has been corrisponding with Twilight, but seeing that she's low on pages she goes back to Mystica to get a new corrisponing book.
However, Juniper has been 'catching-up' on some family matters and discovered that she is related to Sunny, Sunset, Sugarcoat, Indigo, Lemon and Sour, and having the least connection with their father and not being recognized as their sister. To help... 'balance the scale' Juniper was gifted a belater present from their mutal father, Dawntreader the Vow-breaker, Shadow Bolt
Will Juniper's search for justice go too far?
Can Sunset and the Shadowbolts reconcile with their sister?
A My Little Mages retelling of Movie Magic
Omg that last line
Oh gosh! Do you and my mother watch the same Chinese historical fiction soap operas?
This kinda feels like a plot straight out of my mom's Chinese historical fiction soap operas. 
It's funny because season 8 reveals that Starlight has parental issues.
9543236
Sorry I don't. It just came to me.
Any particular reason this story lacks the Juniper Montage character tag?
9543437
I wasn't aware of it at the time
Sorry I took a while to get around to reading this. Nothing to blame except self-admitted laziness. Anyway, overall, I have to admit this is, thus far, A LOT better than the actual special. Not only does Juniper have a MUCH better motivation but you are also going into much better detail concerning Sunset's past (i.e. you are showing the REASON for Dawntreader/Shadow Bolt's falling out with Celestia as well as going into more detail concerning how Sunset ended up in Cinch's care AND how she managed to secure the minotaurs) . And, yeah, I DO really like the dialogue between Sunset and Starlight.
So, yeah, the exchanges, characterizations and future chapter set-up are all well done in all the right places and I will definitely be reading the other stories you mentioned sometime today.
9550195
Dawntreader/Shadow Bolt is a he and the last time he saw Sunset was before he vanished to serve Cinch
9550207
By "She" I MEANT Cinch. Sorry I wasn't clearer.
9550215
But Sunset never ended up in Cinch's care
9550226
All right. I apologize for THAT mistake too. Serves me right for skimming (sheepish grin)
9550230
I think you meant "barge." Also, I understood that reference.
Oh man! I don't know what to say. On one hand, this is about as twisted as the stuff in my mom's soap operas. On the other hand, in my mom's soap operas, it's usually the mothers who do the scheming.
So, there's a spell that can break the bond between a Sentinel and his/her patron?
Why do I get the feeling that nothing good can come out of a spell like that? 
Wait. I just tried looking up B-A-R-G-U-E, and B-A-R-Q-U-E came up. So, did you mean "barge" or "barque"? I mean, both those words mean "boat," so eh 🤷.
9550517
I am gonna go with
9550517
Awwe that last part
One, even though the plot seems more at home in one of my mom's soap operas than the actual franchise, it does a great job making Juniper more sympathetic.
Two, is memory-seeing an extension of Sunset's hidden demigoddess powers? That wasn't made clear, especially since the geodes serve an entirely different purpose in this AU.
Lastly, aww, she called him her boyfriend.
You know who I'm talking about. 
Juniper = bae in that picture. 😍
9554066
You could say, Sunset 'burnt' through every possible falsehood to see the truth
9554284
Okay then.
A fire-based mind-reading spell?
9554787
What's wrong with Wallflower?
So, are you going with the "she erased herself so many times that she practically wished herself invisible" theory because it really feels like that's what you're going with?
9554795
Wait and see
You are a very good at this
Again, really good job on the final two chapters of this story. The exchanges, action, characterizations, general story wrap-up and future story set-up are all well done in all the right places. Yeah, was as aforementioned by other reviewers, you did a great job on making Juniper more complex and sympathetic than what was in the actual episode and I LOVED how well Starlight's talking down Juniper mirrored (no pun intended) how Twilight talked Starlight down more than a year earlier.
Did she just decided to erase Sunset's memory of meeting her or something?
So the shadow bolts are sunset’s half sisters, interesting way to go
9588555
That made my day