The Perfect Poison by Amanda Quick
Amanda Quick aka Jayne Ann Krentz's Arcane Society series is unique. She switches from Victorian to Contemporary settings depending upon which name she uses, but the underlying themes and premises remain the same. Two very different styles dealing with the psychic powers and filled with suspense.
The last Quick installment left me a bit bored. The characters seemed overwhelmed by the themes of psychic power, murder and mayhem. And without strong characters, the plot really doesn't matter. This one brings Quick back to the strong heroes and heroines that made me pick up her books in the first place. Even her earliest historicals had suspenseful plot lines, but over time the heroines had succumbed to a high degree of wimpiness.
So, while not perfect--the suspense was not very suspenseful this time--the Perfect Poison is a vast improvement over previous Quick installments in the Arcane Society series.
If you like your Regency or Victorian historicals without the paranormal or psychic aspects, though, you should avoid this one.