@nurse2 I would write what you do know and once you've done all that you can, have a look back over and what you've got already and from there you might be able to see how to put it all together. More often than not I actually have my first chapter and then the last 2/3 chapters done before anything else. Then I look at that and go how did they get here, have a brain storm, listen to some music relating to it and see what I come up with to then write the rest of it.