I'm not sure specifically as I haven't read it. It could be about a character named 'the shadow' and might involve some sort of mystery, adventure or super - power - related stories common in comic novels.
Sadly, I have no idea who penned 'the shadow comic novel'. It could be a self - published author or someone from a major publishing house. To find out, one could try checking the cover of the book if available, searching for it on book - selling websites which sometimes list the author, or reaching out to comic book enthusiasts who might be more informed.
The Shadow Move is not based on a comic book. It could be a creation of the author's imagination or influenced by various elements, but not directly derived from a comic book source.
You need to start with a clear concept of the style and features you want for the characters. Then, focus on the shading techniques to give that vintage look.