The best hint I can you is that the Novel is *VERY* significant.
Can you name some other Meldrews? Have you looked them up in the History book?
Roger Meldrew was on a picture in the Dark Room. The entry in the History book say he had a wife. One who also wrote romance novels.
Hmm, still not getting through to you. Okay, Marie Sweldon is a pen name for Roger's wife.