Sophia's instincts kicked in. Too anxious to rest, she quickly started her car. She kept checking her rearview mirror, only relaxing when she confirmed no one was following.

The nursing home was in a remote suburban area—if someone had bad intentions out here, she'd be in real trouble.

Just as she was feeling relieved, her eyes caught two Toyotas in her mirror. They weren't following too closely, occasionally disappearing, but would always catch up at traffic ...