I'm not sure specifically as there could be many novels related to Alexandria. It might be about the historical city of Alexandria, perhaps its rich culture, architecture, or the people who lived there.
I don't know the exact main characters without more information about the 'alexandria novel'. They could be locals from Alexandria, like fishermen or merchants.
There's no way to tell who made the 'Alexandria New Story' at the moment. It might be a well - known author from Alexandria, or it could be a new talent who is just starting to make a name for themselves. Maybe it was created by a historian who wanted to document a new aspect of Alexandria's history in a story format, or it could be a journalist reporting on a current event in a more narrative - driven way.