Nightshade is a high-level black-ops team of ex-military men; assembled for top-secret covert operations and headed up by a general they call "Old Man." Their office is in The Shack, a warehouse on the Hudson River. As the six men of Nightshade are getting ready to leave for the day, an attack on the building takes them by surprise. One man is shot, three are captured, but two escape. The four men taken by these intruders are sent to various locations across the continents and are to be executed for various crimes.

There were seven men on the Nightshade team, but Griffin Riddell is in a maximum security prison, wrongfully accused, quickly tried and convicted of killing a US Senator. The "Old Man" hires Kacie Whitcomb, aka Kazi Faron, to break Riddell out of this prison so that together they can rescue the other members of Nightshade before their attacker puts them to death. The general also wants the person or group behind this attack.

Kacie and Griffin are both highly trained black-ops specialists, but they are both bullheaded control freaks who want to get into each other's head and keep each other off balance. As they travel to the West Bank to rescue the first Nightshade member, Kacie is in control and will only reveal the plan to Griffin as needed. This causes some frustrating moments between them, but each of them sees much of themselves in the other. Sometimes they don't like what they see. Will their missions be successful to reassemble the Nightshade team? Will they be able to find the intruders and discover who is behind Nightshade being attacked?

FIRETHORN is a riveting novel that traverses the globe from Virginia to London, Venezuela, Cyprus and Uganda. It is action-packed and will hold you captivated page after page. This is the fourth and final book in Ronie Kendig's Discarded Heroes series, but you don't have to have read the other three stories to enjoy this one. Her page of names and military terms at the beginning are a big help in understanding who the characters are, their relationships and what weapon they are packing. This story is written as inspirational fiction. The characters are tough, but express their faith in God to see them through the most difficult situations. However, this novel can stand on the shelves with the best on international espionage. I'm a fan!