Conspiracy Theory Books in General

I always find myself looking for sources when I read all of this conspiracy theory stuff. Most of the sources lead me to other sources which lead me to other soures that are just more conspiracy theory writers. When does the bullcrap end? I'm currently reading "The Unseen Hand" by A. Ralph Epperson and as an example I'm trying to nail down some hardcore evidence that Lenin and Trotsky were funded by international bankers. His sources list Atony Sutton's "Wall Street and the Bolshevik Revolution," which I've come to find out is just another conspiracy theory book. Now I have to find a copy of this book in order to find out where all of these "hidden secrets" lie. It's really getting old. Any suggestions?