I have a 9K ms that is part picture book, part chapter book and part graphic novel. Several agents have requested the full ms and I am waiting to hear back.
But I worry that they cannot envision the book. I have been illustrating for a long time, so I can see the presentation in my mind's eye; the problem is that the format is not like anything else out there on the market now so I have nothing to compare it to. So how do I sell this without dummying up the whole thing? Or do I have to bite the bullet and do that? Scripting it will not work. But creating the dummy is a heck of a lot of spec work, when I have paying and more salable projects in hand. Still, this one calls to me.
You're going to have to dummy up enough of the manuscript for people to get a good idea of what will happen in the rest of it. If that's a lot of work for no sure gain, well, welcome to children's books. (laugh!)