The Postmistress

I recently read Alison Stuart's historical mystery set in Singapore (Singapore Sapphire) and thoroughly enjoyed it, but this book held me captivated.

I loved the strong heroine, Adelaide, and the trials she went through.
And sexy American Caleb Hunt is her match in every way.
With an interesting cast of secondary characters, a vivid setting and historical data that fascinated, I found this to be a lovely page-turning read.