Make it Stop

Being alone with the mentally insane,
it can get to someone as young as Emily.
17 year old Sadie had been diagnosed with depression when she was 12 years old. She had tried many things.. ranging from helpful to life threatening, but nothing ever succeeded.
Emily tried to fix her, it was the only thing she had wanted since she was 7 years old.
But she was broken beyond repair.
As if things couldn't get worse, the girl's parents die tragic deaths, in a house fire.
This only added to Sadie's well being, and categorizing her as 'mentally insane' would be an understatement.
Emily wants nothing more than to get help, but she doesn't know who to run to, and if anyone were to find her sister, they would be split up, and maybe even killed.
So for now, they'd have to survive in the basement of an abandoned home, in an unknown location, with no one close enough to hear their screams.