title_body: Fix broken eBook Table of Contents?
upvoted_answer: It looks like the anchor tags were put in the wrong place. If you unzip the .epub, you'll see that the link for Part 1
  
  &lt;p&gt;&lt;a id="link2H_PART1"&gt;&lt;!--  H2 anchor --&gt;&lt;/a&gt;&lt;/p&gt;
  
  
  is at the end of the first (navigational TOC) file, 1250-h-0.htm.html rather than the file for Part 1, 1250-h-1.htm.html. 
  
  If you move each of those links to the beginning of the correct file (right after the &lt;body&gt; tag and before the &lt;h2&gt; would be a good place) then that should fix your problem.