Chip and his sister, Wilma, look through a pair of field glasses the wrong way and are magically transported back to eleventh-century China. By the author of The Trouble with Magic. Original.
Ruth Chew is the author of a number of popular books for young readers, including Secondhand Magic and The Wednesday Witch. She was born in Minneapolis and grew up in Washington, D.C. She studied art at the Corcoran School of Art and worked as a fashion artist. She was the mother of five children.
This is another one of Ruth Chew's later (published 1993) books that is quite a stretch.
The only magic is that which gets the protagonist kids from their home to some unnamed spot in Asia. That magic is never explained. Why are the "field glasses" (I thought they were called "binoculars") magic? Where did they even come from? Why do they suddenly just appear in the spare room with all the junk in the kids' house? Many, many holes in this story.
The writing is good and if you can suspend disbelief and just go with the flow of the American kids being mysteriously transported to some Asia of the past, the rest of the story is ok too. (You should also ignore the fact that none of the Asian folks seem distressed by these white kids dressed in strange clothes suddenly running around in their midst.)
I like it better when Ruth Chew writes about kids meeting a witch and having several encounters with magic. I don't like it so much when she has kids magically transported to some other culture in the past.