Slendrina theory

So, if you don't know, Slendrina is a Slender-Man clone game that eventually became it's own thing, and led to the more well known Granny.

There are really small tid-bits of lore, but I'd like to come up with a theory as to what the lore may be.

Multiple times throughout the games, we see the mother (who despite not being named, is known by fans as Angeline) chained up. The first instance of this is in Slendrina X where she's chained in a cage in the Count's castle, and the second is in Granny, where she's chained up behind a bookshelf, and seemingly still alive. This is likely because, as revealed at the end of Child of Slendrina, she poisoned both Slendrina and her father, killing them both.

But why did she poison Slendrina? That's what I intend on figuring out.

At the end of Slendrina: Asylum, Slendrina's baby is shown on a table crying, and the following game features the baby as an antagonist, where they now appear spider-like and bloody, almost like that of a miscarried fetus. 

At the end of Slendrina: The Forest, we awaken a vampire identical to that of Count Orlok from 1922's Nosferatu. Sometimes fans refer to him as "Liev."

In Slendrina X, Liev appears once more as an antagonist, where he behaves similarly to Angeline. 

What if Slendrina and Liev had the baby before marriage, just for Slendrina to then miscarry said baby, angering Angeline, who believed Slendrina was carrying some kind of Antichrist. 

Angeline would take revenge on Slendrina by poisoning her and her father's food, however the rage Slendrina felt after discovering what happened kept her alive as a spirit as, if you've seen The Grudge, you know, when someone dies in the grip of a powerful rage, a curse is born.

As punishment for filicide, Angeline was forced to stay alive as an actively rotting corpse, which is why she doesn't appear to be a ghost, but rather some kind of zombie.

On top of that, Liev, heartbroken by the hearing of Slendrina's passing slept over 100 years before being awoken by the spirit, where him and Slendrina's ghost would chain up Angeline in the castle.

If we take into thought a new theory, that Granny is perhaps a prequel to (at least) Slendrina X, then it's possible that Granny, also horrified to hear of what Angeline had done, chained Angeline up behind the bookshelf, however Angeline was freed by the player, and finally allowed to pass (or maybe not, as again, she's chained in Slendrina X).

As well as that, putting the teddy bear in the crib in Granny makes Slendrina appear, but doesn't free her soul, as she's shown in the ending behind Granny, possibly intending to do something to Granny.

Let's now assume that Granny: Chapter 2 is set after Slendrina X. Granny, possibly knowing Slendrina intended to do something to her, with the help of Grandpa kept Liev in a cabinet, as he's found in there. Slendrina's diary also appears in a bookshelf in Granny: Chapter 2, which leads to my next theory that the book you trap Slendrina in at the end of Slendrina X is possilbly her diary, which appeared previously in Child of Slendrina.

Granny kept both the diary and Slendrina's baby at Grandpa's house, and used the baby to guard an item for the player's escape. Shooting or tasing the baby causes Slendrina's angry head to appear over it's body and moan at you before disappearing, possibly signifying that her spirit has once again become vengeful.

In Granny 3, despite their differences she's willing to help Granny and Grandpa target the player as a sort of revenge for killing the baby, but once again fails, as the player escapes.