What are some fiction books about mathematicians?
It seems to me rather difficult for writers to create good books on this subject. Some years ago I thought there were no such books at all. There are many reasons: it is difficult to describe the process of discovery and describe it in the exciting way. The subject has narrow audience and not the way to make best-seller...
Comments on how authors try to avoid these problems are also welcome. The movie "A Beautiful Mind" is a (beautiful for me) example, where the story of mathematician was mixed with love and spy stories to make it interesting for general audience, well not so much preserved from mathematician's story, but nevertheless I am quite positive about it.
Here is a related MO question: