I have a chronic problem of not being able to start a piece. This particular time it's a story I've had in my head for weeks now, and I don't know how to start it... It is a fantasy story, but it has a much darker twist (at least in my head) to today's angst filled teen stories. The main character and her twin brother play important keys to the family's ancient legend (blah blah blah) Any tips on how to start this off? I considered using a dream, because I wanted the beginning of their struggle to be on their 16th birthday but that's kind of overused these days.