Queen of Diamonds

Evelyn Hyde.
She is an orphaned Victorian noblewoman.
A Victorian noblewoman with serious trust issues.

So, when suspicious murders start appearing all over London, trust becomes more precarious by the hour.

At first, the victims are Evelyn's enemies.
But, the deaths gradually spread to the people closest to her. To the point where only one question is left:
When will someone kill her?

A story set in Victorian England, sometime in the 1860s.