If I were trying to think of two different genres of fiction to put together into one story, I don't believe I would ever have come up with Amish and science fiction. Marlayne Giron did just that in her newest book, In Plain Sight, and I have to say that it did not work for me.
Twin brothers, one with silver eyes and one with gold, show up in an Amish community, attempting to fit in by dressing and behaving as Amish. As crop circles begin to appear in fields and farmers in the area suffer loss to crops and livestock, one of the brothers falls in love with a local Amish girl, and the boys live with and are defended by her family. Things become more and more complex as the brothers look for a way to repair their damaged space ship and make contact with other beings of their own kind.
Following all the incongruous events of this story just did not make for enjoyable reading. There were also several unpolished elements in the actual writing of the book. I have read some favorable reviews of the book, so there is evidently an audience for this type of story. For me, though, it was just too far "out there."