Just calm down. Take a deep breath, Emma thought. This is no time to panic. Read it again, she told herself. She scanned the note a second time, this time carefully studying each word. Halfway through she began to feel sick to her stomach. Emma had come a long way in conquering her timidness, but the thought of somebody threatening to hurt her was terrifying. She had seen other kids picked on in school. It was upsetting even to watch...