Exact same issue for me.
I was happily doing the epic quest along with some other side quests when suddenly I just ran out of quests. Volume III book 10 quests are no longer showing in my log at all as either completed or incompleted (you can use the selection icons at the top of the panel to exclude all but epic quests to be certain).
I'm not sure what the last thing I did was before this happened but I do know I was in or around Forlaw at the time.
It's very frustrating as I now have nothing to do after looking forward to this area for so long now. All I can do is go back to Hytbold and do some crafting instances, again.
[center][url=http://forums.lotro.com/showthread.php?18699-How-to-get-help-on-the-Tech-Forums-and-how-to-contact-Turbine][color=gold]How to get help on the Tech Forums and how to contact Turbine[/color][/url]
[color=green]Please reply to the topic or PM me if a solution I posted works for you: The more data I can gather the better I can help.[/color][/center]