Review Detail of boo88 in The Innkeeper

In all honesty, a great book, love lex as a main character and Mary as his tiny assistant. The system has its own agenda, and I like that lex sometimes diverges from the path that the system is trying to guide him to. I am wondering what was the original timeline and if the timeline they are living in is the original? and if so does that mean lex has always been hidden from destiny or something?