Ghostwriting project

I've recently been approached to possibly ghostwrite a novel for a businessman based in London. This may not eventually occur, but it's an interesting project, especially as it's a novel rather than a biography.
The idea is that it's a way for him to get his beliefs across, and these are quite interesting and create a great foundation for a narrative. I can't really say anymore about it at the moment and am just hoping the project comes to fruition.