Board Thread:Lore Discussion/@comment-72.77.73.35-20140408131341/@comment-173.176.234.147-20150204162458

Draconi Nascentum Imperatore wrote: A Nightingale isn't forced to go to the Evergloom after death, they're only forced contractually to defend the Entrance until Nocturnal deems their service at an end (though I think she'd be fair in this regard an it would expire after several decades like Gallus). After that they receive the special invitation to reside in the Evergloom.

Unless Nocturnal and Hircine would cooperate in a way that one's obligation to Nocturnal would be completed first, and then the werewolf spirit would take it's host to the Hunting grounds, then there would be a conflict between the two. You have a point in that the only obligatory part after dying as a Nightingale is that you must protect the Shrine for a while (which makes sense, Nocturnal protected you with her luck when you were alive, so you protect her temple for a while after your death - fair deal, and she doesn't seem to fool her followers), afterwhich becoming one with the Evergloam does not seem to be an obligation (however it seems to be perceived as an honor so I doubt Nightingales would refuse to enter their mistress' realm and become the very shadow that cover their fellow thieves).