eggs in a basket

At a signing recently, a fan talked to me about the novel she was working on. She wanted to know if she should write the sequel to it while it made the rounds or if she should work on a different novel entirely. Perhaps I am not the person to ask, but she did ask me, so I did give my answer. This is it:

Write another book, not the same book in the series.

If you keep working on only one series, you are putting all your eggs in one basket. It might be the right basket. You might be one of t...