A friendly bugreport:)
With the newest version (1.1) i got this bugs:
1) freeze on loading screen
2) beheading starting immediately after entering lair for first time, sometimes cagefight too
3) lair can be entered with simply pushing the book from the pedestal
4) when i visited the lair another time with a follower nearly all slaves where not in the lair.
5) never managed to enter the lair from the door beside Riverwood, always freeze on loading screen
Only way to enter the lair was from a clean save, right now even this do not work anymore.
Only way to see the beheading was resurrecting the victim with console, animation is out of sync then (second Priestess of Hydra is not in place).
To restart cagefight one must drag the dead bodies to the cage they belong to, close the doors and resurrect, than use the "startbutton" beside the thron.
Also i would suggest to cap the merchants gold to 20000 to bypass a known bug where the merchants stop to pay you for your loot after some time.