THRESHOLD

These things I know:

1. The Vice President is coming to Philadelphia.
2. Someone is going to try to kill her.
3. We have four days to stop them.

Key Murphy has been urgently summoned to Philadelphia. There is a threat to the Vice President of The United States. That’s all he knows. It’s what he doesn’t know that scares him:      
Who made the threat? What do they have to gain? Why does someone want him involved? Is the threat real, or is someone just trying to create chaos? What the hell is he supposed to do about it?

“Fans of thrillers like the Bourne series will have a great time with Threshold.”