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A young girl and her little sister are going to her family's beach house, which they do every year, but this year, it's different. She wakes up one night to find her parents missing. She gets Dottie, and they find a boy there on the beach telling them that they needed them to come with him.
They go with him, and learn there parents have been taken captive, and she and her sister had to go on a long harrowing journey to find them.