Silva Hayes profile image 92

Can you identify this book?

In the 1950s or 1960s, I read a science fiction paperback book that is haunting me. Here are my vague impressions. A family who may have traveled back in time; I remember the mother had her children use sewing thread to floss their teeth, something about a girl with butterfly wings being surprised while at a forest pool, Tesla and perhaps giant turbine engines, a greenhouse, humans being transmogrified, and an overall sense of threat or danger.

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Best Answer Woodpecker27 says

3 years ago
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  • Silva Hayes profile image

    Silva Hayes 3 years ago

    Thanks for the help. I still can't find it . . . but I will continue searching.