I'm new to this site and show I just finished listening to them all with my father. One thing we both noticed was that Saul and his mother seem to just know when someone is alive. Saul knew Burt or someone was in that room, Saul knew his dog was alive and ok same with his mother before the met up again but he also knew she was on that chopper, and Tanya knew knows Saul is alive I belive she said it already. Going back to Saul he had no way to know that the blood in the store from tar cutting Lizzy was her but he knew. I'm probably way off but I think that might be important and has somthing to do with them fighting off the infection.