What can I do with the lifestone?

Hint 1 of 12:

Do you remember the room with the dead corpse?

Hint 2 of 12:

And Philip's words?

Hint 3 of 12:

And the note lying under the lifestone at its initial position?

Hint 4 of 12:

It had something to do with Dr. Frankenstein not looking for you here and an
experiment.

Hint 5 of 12:

You already have two ingredients.

Hint 6 of 12:

Drop the turkey leg and the lifestone here.