Page 331: Halfway through. 1
1 Not considering the 40-page index, cataloging occurrences of… What? Every noun in the book? I haven't studied it sufficiently to say, but that's what it appears to be.2
2 Halfway... "The point of no return." I guess that means turning back is no shorter a path than forging ahead. Of course, when most people abandon a book, they simply stop reading. Very few are inclined to depart the way they came in -- reading backwards until they find the exit where they entered on page 1. So perhaps "point of no return" has little meaning with respect to a book. But in this particular house, I'm not sure either method would render escape. Don't get me wrong: I'm enjoying my stay in the house and have no intention whatsoever of leaving. This is just an observation.