"Although we were soulbound already, the moment you named each of us, that bond has been strengthened significantly, Hermione.  We will be able to better sense what is happening with you and when you need us – and you will be able to sense when we need you."  He came to her and caressed her cheek.  "And right now, I can feel your exhaustion as if it were my own.  Severus... take her home, would you?  I don’t think I need to ask you to take care of her."