I liked very much the Sebastian St. Cyr Mysteries by C. S. Harris, all by Deanne Raybourne and I guess The Lady Emily Mysteries by Tasha Alexander are something you will enjoy, too.
Some of these books and tons of romance and mystery books you get for free at the
Singapore Library. Just give a 6 to 8 digit code and a name and off you go, enjoying nearly 3,000 romance books and as much mystery books!