This is a fun read. There is a religious movement called Heralds for Peace, or the HFP for short. No one is quite nutral about it. Everyone either hates it or loves it and those who love it are all part of it. It is also growing. That, of course, means that people who hate it are somehow being won over. A professor of political science takes it upon himself to investigate the movement and soon finds out that the leaders are in contact with space aliens. It is also found out that there is a plot afoot to enslave the people of the Earth. The question is just who is actually trying to bring about that enslavement. Is it the space aliens? Is it the HFP? Is it the forces opposed to the HFP? So as not to introduce a spoiler here I will let you read it and find out for yourself. You just might be surprised.
By the way, I wish the author would realize that calling someone a communist is not necessarily an insult. Some people are proud to be called communist.