Since we lack information about Ed Coulson's novels, we can only make some general assumptions. If his novels are in a certain genre, like historical fiction, he might focus on accurately depicting historical events while also adding fictional elements. He could also have a characteristic of writing in a very engaging narrative voice that draws readers in and makes them care about the story and its characters.
Since I don't know much about Ed Coulson's novels, it could be that he is a self - published or emerging author. You could also check on some indie book review websites or forums where readers might discuss less - known authors and their works. Maybe someone there has come across Ed Coulson's novels.
There could be. A lot of fans like to create crossovers between different shows they love. To find a 'Coulson is Lucifer' fanfic, you could try searching with specific tags on fanfic platforms. Some fanfic writers are really creative and might have come up with an interesting story combining these two characters.
There's a fanfic called 'Coulson and Skye: Partners in the Shadows'. This one delves deep into their characters. It shows how they support each other during difficult missions. The author does an amazing job of portraying their unique bond.