Twisted Vengeance — Deborah Reed

Book FIVE of the Mackenzie Montgomery series....

Intending to pursue her graduate degree in New York while her husband is on a Special Ops mission, Mackenzie Black is relieved to be moving forward with her life. As odd things begin to happen, however, Mac begins to fear that the simple life she desperately longs for is not to be. When a 'ghost' rises from the ashes of her past, Mackenzie suddenly realizes things are not always what they seem.

Mackenzie races through the streets of New York in pursuit of a ruthless killer unlike any she has encountered before. But as she tries desperately to protect those around her, Mac is faced with the cruel knowledge that not everyone she loves will come out of this alive....