Mr. Martin was a loner, with no plans for a family. One day, fate interrupts his plans, and gives him a tiny baby girl. He loads her onto his boat and they set sail, ready for a life filled with adventure. The little girl's eyes are the shade of the sky on a perfect day. So, he names her Blue. At thirteen years old, Blue is smart, witty, and funny. The Island they are visiting is new and interesting. The natives have warned them about danger on the other side, but Blue can't resist the temptation to explore this hazardous place. She knows Mr. Martin will never agree to go, so she plans on asking her new friend, a cute native boy named Simon, to take her on the journey. What could the danger be, and will Simon agree to go on the forbidden trip?