The 35 Best New Romance Novels That'll Make You Swoon

The fourth book in Katee Robert's "Dark Olympus" series, "Radiant Sin" follows retells the Greek myth of Apollo and Cassandra with a modern twist. It follows Cassandra Gataki, who is asked by the god Apollo to go undercover and attend a party with him as his plus-one. Their fake relationship escalates — and so does the heat.

Release date: Feb. 7