See below for the page counts and number of frames. Please be careful about assuming less or more pages/frames means less or more play time. There are a lot of factors that go into that, some books may have more multi-frame entries, some may have gameplay that takes longer based on a variety of factors, etc - including your individual play experience based on the choices you make! In short, our recommendation is that you pick the books that interest you the most regardless of page count.
Here are the specific page and frame counts by book:
Captive: 168 Pages / 279 Frames
Tears of a Goddess: 104 Pages / 236 Frames
Loup Garou: 148 Pages / 326 Frames
Your Town: 152 Pages / 341 Frames
Sherlock: 180 Pages / 323 Frames