Reliquary by Sarah Fine

Just finished reading Reliquary by Sarah Fine. Top-notch urban fantasy with a "fiance has a secret life main character is just finding out about that changes everything" plot line. Readers looking for a HEA in this book will probably be disappointed, and there was some unexpected explicit BDSM at the end that was surprising but done well.

But! This cover! It's lovely, but I interpret it as maybe fantasy, maybe romance, but not specifically urban fantasy. Expectation mismatch.