Tim Powers’ The Anubis Gates, which is my personal favourite of his books, is on sale at Amazon. Excellent use of time travel in the plot, a kind of proto-steampunk feel (very well executed), and all around a unique and memorable book.
https://smile.amazon.com/Anubis-Gates-Ace-Science-Fiction-ebook/dp/B006UMI0OK/
It really was a good book.
“The Anubis Gates” was one of the books that the term “steampunk” was originally coined to describe.