There's nothing wrong with the word "chronicle." It basically means an account of events in order of their occurrence. And the thing about Chapter Seventeen is that while it is an account of events in order of occurrence, it doesn't exactly leap from the page as an event that is in order of occurrence. And your writer of pulp is beginning to believe that this might be the problem with Chapter Seventeen.
He's tried potlatch and that was really no help at all. It served merely to
reinforce Chapter Seventeen as a painful anomaly. The other thing about Chapter
Seventeen is that it's all very well holding firm to the faith that it's
creeping toward its conclusion and carrying on regardless, but with this sort of
attitude Chapter Seventeen might just go on forever. However The Windral is
about wandering aimlessly, so your writer of pulp is at least making his own
point to himself, which is a sure sign of authenticity even if it does present a
bit of a problem.