The ending and the plot (Perception)

Such an outcome I honestly did not expect. It turns out the plot was based on the history of actually existing person. Russian-speaking resources on it is not found, found the English-language resource and translated. And here is what bourgeois source :

Susannah Martin (North) (Suzanne Martin)
Alias: Susannah North, Salem Witch Trial (Suzanne North) (the Salem witch trials)
Date of birth: 30 Sep 1621
Place of birth: Olney, Buckinghamshire , England ( City of Olney, Keynes Buckinghamshire England)
Death: Died July 19, 1692 in Salem Village [present Danvers], Essex County, Massachusetts (In the village of Salem -now Danvers,
County, Essex Massachusetts )
Cause of death: execution by hanging (death by hanging)
Burial place: Salem, Essex County, Massachusetts, United States (Salem, Essex, Massachusetts, United States)

So here. In 1692 as the time and place the 4th and last Chapter of this game.

Further spoilers of the plot, and if you have not received the game and don't want to spoil your impression that I do not recommend to look there. And other things As you want ))
It turns out that ?
Spoilerville GG's mother AND Richard's father ? And all of them are descendants of Thomas Drama ?
Even this ispitatel BOSH ? Well, let's say. Then it turns out ( as it turned out in the end ) Susanna cursed rod Drama, it's understandable. This partially explains the poison apples (the Third Chapter) This also explains the strange death of children. But I don't know if Richard had a cradle with a baby in the window to pull and thereby saved GG, then what the hell Felicia then hanged himself ? Betty even stupidly drowned in a bathtub, and the most important issue. Why are they all crazy ? And yet... What is that thing from which we saved the whole game ? Even if Suzanne, after we took it out of the loop, said we need to run. But she calmed down I understand. And how the ghosts of this very creature caught ? If one of these points understood, can you explain ?