Side note:

I think markets on authors, books, TV shows, and all other creative works are awesome and there are huge communities of fans of these things that would all love to speculate on the future of their favorite entertainment products and bet play money on it.

Keep creating stuff like this! Eventually some subcommunity is going to find itself thriving.

What is the current count of video adaptations for the author, is it zero?

If the count is already 1, it seems like getting to 2 is a bit easier. So many authors are stuck at zero.

@Eliza Zero, but it's pretty unlikely an adaptation won't ever be made, especially considering that one is already in development.