After reading No Mercy I looked forward to reading Hostage Zero. It did not let me down. I like the cast of characters that John Gilstrap has assembled. Jonathan Grave is someone you want to know better, and Boxer is someone you want on your side. I hope this series continues. Hostage rescue expert Jonathan Grave is used to going where even the government won't. An innocent man has been shot and two young people are missing. But tracking them down is just the beginning.Jonathan must plunge into the heart of an ugly secret whose insidious path reaches into the highest corridors of power and he must defeat enemies who are willing to kill again and again to keep the truth from being revealed.