Mad Mary

From Adrian's Persons of Interest:
A woman who has been heard crying loudly from her decrepit home in Barovia for a long time. Dubbed 'Mad Mary' by the people of the town since she still believed her daughter Gertruda is still alive. She told us that the girl probably ran away, there were rumors of her being interested in a certain boy? I do not recall clearly... at the time I had little compassion.
We had already lost so many children, Nars, Freek, what was another lost child and one who has been gone for some time... Sometimes you must focus on other tasks to do the most possible good.
Right?
The only clue we have is that freaky little doll...