Young Senator Jim MacVeagh is proud when President Mark Hollenbach begins taking him into his confidence. But then the president starts summoning MacVeagh in the middle of the night to Camp David, where he sits in the dark and rants about his enemies, unfurling insane theories about people conspiring against him. What can MacVeagh do? How would he convince anyone that the man he once admired has become dangerously unstable? Republished by popular demand, this 1965 political thriller by the author of Seven Days in May was deemed "a little too plausible for comfort" by the New York Times.