tl;dr
A fairly fast-paced read featuring several interwoven plots and a lot of pining. The secondary couple is very endearing.

About
Duke Tarleton Fanshawe (Tate) is in trouble. His father gambled away the family estate right before his death - at least, that's what the debtors claim. Tate isn't so sure, but he has no way to prove it. Meanwhile, the love of his life, Ianthe, might be married to another if he can't get his estate back. A chance meeting with a lookalike gives Tate an opportunity: Send the lookalike to London in his stead while he goes undercover to learn the truth about his father's dying words.

Thoughts
One of my favorite tropes (swapping places) meets one of my least favorite tropes (lack of communication), which puts this book squarely down the middle for me. I don't mind a little pining, but the fact that Tate wouldn't explain to Ianthe what was going on is... a struggle. The story got much more interesting once she was actively involved in it. As for the story, there's a lot in here - more than you might expect in most regency romances. Several plot threads are moving at once, with interconnected complications and a handful of mysteries along the way, all pushed along at a brisk pace by straightforward writing. Aside from the main couple, there are a few other romances going on as well, all very sweet, so if you love a story with many happy endings, this will probably be a bonus.

Thanks to NetGalley and Dragonblade Publishing for a review copy! All thoughts in this review are my own.