Recs if you like A Spartan's Sorrow (The Grecian Women Trilogy, #2)...

All the greek mythology I can find out there! There is a lot of Percy Jackson and then quite a bit more. A mixture of more modern retellings and also the books and plays they're derived from.

Greek, Roman, Arthurian, Norse, Celtic, Hindu, Japanese, and more!

In light of the recent interest in Greek mythology because of the release of Christopher Nolan's The Odyssey, here is a list of Greek myths and retellings of them

Mythology retellings (Greek/Roman), and book set in Ancient Greece or Rome.