"What did she pass from?" the girl asked. "M.S. Multiple sclerosis." "What's that?" "It's a human disease where the body's immune system attacks the coating that protects your nerve fibers? Without that sheath, you can't tell your body what to do, so you lose the ability to walk, feed yourself, speak. Or at least, my mom did. Some people with it have long periods of remission when the disease isn't active. She wasn't one of them." Mary rubbed the center of her chest. "There are more options for treatment now than there were fifteen or twenty years ago when she was first diagnosed. Maybe she would have lasted longer in this era of medicine. Who knows." --