Alpha : a Jad Bell novel
(Book)

For the visitors to Wilsonville, the largest theme park in the world, the day began with a smile. By the end, they wonder--will they be able to escape with their lives? Retired Delta Force operator, Master Sergeant Jonathan "Jad" Bell, is Wilsonville's lead undercover security officer. The threat begins with the announcement of a hidden dirty bomb, but quickly becomes something far, far worse.