Answer:
The Watcher by James Howe is a mystery about this girl named Margaret watching these two boys on the beach every day. She writes about them in her journal. One of the boys is Evan, from far away you see his family as perfect but once you see what's actually going on you realize the family is broken. This young girl is only known for sitting on the wooden steps that lead down to a beach, no one knows who she is or where she comes from.
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Explanation: