@LyricaLive When i have this problem, i usually just start on that new book then when i run out of ideas on it, i swap over to the other books and keep writing. If the is an chance for a chain of events to occur, then lets that flow along in the story. If you seriously want to write that book, you will find yourself writing on that more than the other. If you don't write on one enough, you only wanted the story for the events.