Thank you again for all the nice replies.
I talked to her mom for a while yesterday (she stopped by to see us), and found out that Emma's hopefully coming home on Monday. They have started her on an antidepressent, as well as a mood stabilizer.
When they were checking her over, they found that she had been cutting herself for a while.
Mostly on her upper thigh, where it wouldn't be seen, even in shorts.
She said she did that because she felt numb, and wanted to feel something.
She did say she wants to get better, though, and hopefully these medicines, along with the counsling, will help her figure out what it is she thinks she's missing.
In the mean time, her mom wants to take her out and do things with her more now, so next weekend the three of us are going to go around to yard sales. It's the fair next weekend, so the town will be packed with sales.
She also wants Emma to be around the kids more (supervised for a while), because she just loves to be around them, espcially lil Gilly.