I am looking for two books.
The first is about a vampire in London who in lord of a coven of very weird vampires. They all think they are in another time. One is a roman noble and so on. The youngest is Jack. Jack the Ripper. The Love of the book is a woman selling something from a cart. She has a bad heart.
the other one has rubies that change into anything that the people need them to be. The hero uses them for sex until he meets the female. I don't know exactly what is going on in the plot except they are fighting some kind of demon horde.
