Tough choice - but I think Trees is my pick. Thanks for the challenge

Wow, I haven't heard her name for years. Your post has brought back memories of avidly reading historical novels in my teens. I can't remember the titles, but I remember reading about Mary, Queen of Scots. I think there was another book about Sarah Churchill & Queen Anne. I could be imagining that.

Tough choice but had to be lights, mirrors and lenses