A world as complex as the setting for the Rook and Rose trilogy contains a lot of information — and when there are two authors involved, you can’t just assume everybody will remember everything the same. That’s why Alyc and I got my husband to set up a private wiki for us, where we could keep track of the details.

It grew to be . . . rather comprehensive, let’s say. (As in, 190K words, which makes it essentially the fourth book of the series — and longer than any non-Rook and Rose novel I’ve eve...