Word Count Day Twelve

The human finished Chapter 9 with 4266 words bringing her up to a total of 34,756 words. She says she's right on track with things as far as the novel structure, too, and she thinks she could even be just a tiny bit ahead. That doesn't seem to bode well. If she gets this one done faster than expected, then what does that say about how fast she will be able to crank out the next novel?