who is eric kraus. >> guest: eric kraus is a secret service agent who is the nemesis of our main character, eric landover, who is actually the person who is the hero of the book. >> host: what's the theme? what's the plot? >> guest: well, if you can imagine that a couple of secret service agents are watching the moper toes at the white house, in the middle of the night there's a blackout suddenly a maintenance standing on the back lawn of the white house who looks just like abraham lincoln. he is arrested and he insisted he is really abraham lincoln and he says he has a message for barack obama. >> host: what's the message. >> guest: most people assume that people expect that abraham lincoln did everything right and wants to correct obama's efforts and he would say that lincoln made mistakes and sent down a slippery slope. >> host: where did you get the idea? >> guest: the idea was funny. we were driving in a car and i said, literally, what happen if abraham lincoln showed up on the white house line and if he could get five minutes with barack obama, what would he say and how much would be