No kidding. That was the main thing I've done with it so far. It understands characters and franchises and settings.

To be obnoxious, I asked for a story featuring Q, Harry Dresden and Dream of the Endless, and it did it. Q collected Harry for a challenge and transported him to the Dreaming, where Dream gave him the task of defeating some shades, which he did using magic. The descriptions were all quite good.

Nothing earthshaking story-wise, but the fact that it used its knowledge base to write it is mind-blowing.