How can I talk to the Tree of the ancestors?

Ich heard years before that divinity 3 is planed "for the future ".

Give it informations when this "future" is?

I am having difficulty reading the book needed to access maradino's hideaway to get his secret files without which I cannot continie the Trolls Cave area.

I was fighting Migo in fort joy and had to flee, i had to do it for each party member and my main character died, but i resurrected him. i cant get my party to move as a unit now even after regrouping all of them together