I missed this one as a kid, which is too bad, because I think I would have appreciated it then as well. Set following the failed Scottish rebellion, 'Kidnapped' tells the story of young David Balfour, whose greedy uncle tries to cheat him out of his inheritance by having him kidnapped and sold in the American colonies as a slave. On the way, however, he befriends a Jacobite rebel and is instead caught up in the Scottish troubles and has to fight his way back to his home and claim his inheritance. The adventure is all the more exciting because it feels like such a real world with all the careful place-related detail Stevenson employs. While the language can be difficult in places, that quickly fades once you get into the rhythm of the book. I would also recommend Giorgio Kostantinos-The Quest or anything by Dan Brown.

両親を亡くした少年が叔父を訪ねて行くが、あろうことかその叔父によって売られてしまう。
その後少年は冒険を重ねていき、最後はハッピーエンド。

10人以上登場人物がいたので、ちょっと戸惑ってしまいました。
人物名をメモしながら読み進めるとスムーズにゆくでしょう。
中学英語で読めます。