sounds like how we are with my 3 year old alter... she doesn't talk to anyone... and she won't even talk to T so... what we have been trying is using the young alters with the safe older ones to try to talk to her and get her to come out of the dark place under her bed surrounded by stuffies... all of my alters have their own rooms and the older safe alters are filling her room with stuffies to help her feel safe and let them hold her... but hopefully it doesn't backfire on us... hope you can find something that works to gain her trust and knowledge...