I am not sure I have the words to adequately describe how much I've loved this book and still love this book. My 4th grade teacher started reading this to our class back in '78 or so. About two chapters in I couldn't stand his slow pace anymore, got the book out of the library and plowed through it ...
The frame is a little awkward and the narrator feels a little obtrusive, but on the whole this is an excellent time travel story. I liked it a lot. If I was younger I might have loved it. Much of the information about the Children's Crusade was exciting and interesting, I think its a great choice...