Crystal Gardens:(Ladies of Lantern Street #1)

Lucas Sebastian has never been one to ignore a lady in danger, even if she is trespassing on his property. Quickly disposing of her would-be assassin, he insists they keep the matter private. There are rumours enough already, about treasure buried under his garden, and occult botanical experiments performed by his late uncle.

Ladies of Lantern Street:
Crystal Gardens (Ladies of Lantern Street, #1)
The Mystery Woman (Ladies of Lantern Street, #2)
Otherwise Engaged (Ladies of Lantern Street, #3)