Really sorry, Karen, but I disagree. This is a young husky that has been through a LOT! She is now in a strange environment with older dogs and people she doesn't know, trust or understand. She is being the nightmare because nobody, in her eyes, canine or human, is in control. She needs direction. Someone needs to step up and be the sane and intelligent leader of this group, have rules that everyone sticks to (including any dog hiding!). The husky is going to be the dominant member of the canine group and that is fine. This does not mean that your older dogs feel less loved by you or less important to you, they just feel safer and less stressed. To achieve this you need to convince the husky that you are able to do the same for her.