Please remember that when issybird announced the first three themes (
in December) there were no suggestions yet, they were set to give us a starting point and an idea of how themes are supposed to work.
To answer
Catlady's question about what "it's all relative,
time-ly books" means, I think you can take it however you want. Books with a time related word in the title (
Time and Again - Fantasy;
Not After Midnight - Short fiction;
Ladder of Years - Fiction), a time travel type book (
A Sound of Thunder), or something about physics related to time (
Understanding Einstein's Theories Of Relativity). Or, you can ignore the "timely books" portion and use just the relative part and get a book about relatives or with a relative in the title(
My Cousin Rachel,
Uncle Tom's Cabin, etc.) I think the time related words are what is intended but that's ok.