Pennyfoot Hotel

This is the first in an Edwardian mystery series about Cecily Sinclair, a middle-aged widow who owns a big hotel and has a knack for solving murder mysteries.

Third Daughter

I really enjoyed this fantasy about the third daughter of the queendom trying to find the truth by spying on her fiance--a neighboring prince, and decide whether to go through with the wedding. Weapons and technology, the threat of war, intrigue, romance, etc.