Answering your question what mystery in my life could be a plot for a book? I actually have a few lol. One is my father got up one day when I was 8 and never came back. The authorities drag the river where his jeep was found.... Also when I was 16 dating my husband, a guy broke into my house and stabbed my little sister 5 times in the head & neck. I got in the house first, never solved, they think he was watching me.