Having seen the Yew Branch ask - how do you think the following would go? Desmond is reborn as Aya of Alexandria. How much would that impact the foundation of Hidden Ones? Would they still be a pair with Bayek? (I mean. I hope. Let Desmond be loved). Does Khemu survive? (I mean. Think if Al Muslim's daughter!Desmond AU but post birth - I would love to see them kill try and Khemu) Does *Order*, Cesar and Cleopatra survive?
So let’s talk about how Desmond is gonna fuck the creation of the Hidden Ones so badly by being reborn as Aya of Alexandria.
Let’s remember that Desmond has no idea how important Aya is meant to be in the history of the Hidden Ones/Assassins. Hell, she doesn’t even know that this is the time period where the Hidden Ones would be created.
She would still end up in Siwa though because her parent are busy and Desmond is a menace as a child, disappearing for hours and reappearing like nothing is wrong at all. No one would think to be suspicious of her being in the same vicinity as certain bad people die or get caught but her parents would be scared that she’ll find herself in the middle of it and get hurt or worse so they send her to Siwa to live with her aunt.
There she would meet Bayek and… they’ll get along quite fast, actually. Bayek would be interested by how ‘unique’ Desmond was. He had never seen a girl like her before.
Desmond would see Bayek as someone with the potential to be an Assassin and they’d just… play. Sorta. Playing with Desmond means learning how to be an Assassin without knowing you’re being trained to be an Assassin.
Desmond… didn’t plan to fall in love with Bayek. He certainly didn’t plan to accidentally teach the children of Siwa how to Assassins. He was just… bored. Siwa was peaceful and hunting for sports was never something he could ever do so… he got bored and played with the kids without thinking too deeply of how easy it is to train kids using tag and hide-and-seek.
By the time Bayek becomes a Medjay (and the whole drama with his father is also over), Desmond pretty much has an unofficial Assassin bureau setup in Siwa with a few unofficial Assassins (including Tahira and Khenza). They’re not Medjays but they’re close allies enough.
During that time, Desmond and Bayek also fall in love and marry (because there’s no way Desmond would ever be immune to Bayek’s charm, come on). They’d have a child as well. Although… Khemu’s not gonna be called Khemu, I think. He’d have a bird motif name because Desmond can’t help himself.
Khemu would also be sneakier and much more used to defending himself. He’d still be a kind and dutiful son but he’ll also have a mischievous streak that definitely came from Desmond. Also, he’s learning to speak English, Arabic and Kanien'kéha. He and Desmond speak in those languages when they don’t want others to understand them. Bayek also learned some of them because he likes hearing Desmond speak in those languages.
Khemu lives, no doubt, but let’s make it more dramatic and complicated. Khemu is technically the child of Desmond Miles even if she’s been reborn as Aya of Alexandria so Khemu’s genes are a bit… wonky. Not Elijah-Sage wonky but the current time period giving a greater Isu-to-human gene ratio + Desmond being reborn as a descendant of Kassandra who, depending on when you play the DLCs, has a body that could have already been fucked by Isu BS thanks to her Aletheia haunted spear/staff certainly makes Khemu’s genes an anomaly.
That the Apple of Eden reacts to.
So instead of killing Khemu, he’s kidnapped while Desmond was away in Alexandria, taking care of her parents’ estates and belongings (this is where she will also find Darius’ Hidden Blade)
And that is how Bayek’s path of revenge turns to both Desmond and Bayek traveling to find their son.
Along the way, Desmond says ‘fuck it’ to the timeline and creates the Hidden Ones…
Although… she names it the ‘Assassin Brotherhood’ because she has no idea about the true history of the Hidden Ones so yeah… Desmond is gonna bypass the Hidden Ones and go straight to developing the Levantine + Italian + Colonial Brotherhood in Egypt.
Khemu manages to escape all on his own and runs away, looking for his parents. At this point, he would have an Eagle Vision (although Bayek would rely on Senu still) that will help him find his parents.
Everything comes to a head when Cesar and Cleopatra do their whole ‘save Egypt’ thing and Khemu reunites with his parents there as well during all the destruction.
Desmond is never gonna take the name Amunet. For one, she will never be BFFs with Cleopatra and she will not have the whole “Aya is dead, only Amunet remains” kind of character develop Aya had. She’ll be calling herself Desmond very early on anyway.
Desmond would take the mantle of mentor and would be the one to assassinate Cleopatra because she becomes a threat to Egypt’s freedom as well as Cesar. Of course, since Desmond knows how Cesar dies (as a meme though XD), she does assassinate Cesar the same way Aya did in the game.
If you do want to include the Curse of Pharaohs DLC, Desmond’s entire demeanor is “Nope, not going to fucking deal with this Isu BS. Bayek, you go take those ghostly things. Imma cheat and use my Eagle Vision to find where the POE is.”