Hi,
I have done things in order. Got the quest from Rydell, then got the nutrients, then fed them to Control four. It did tell me that I lost the nutrients, and I had the dialog where Control four is being fed.
Coming back to Pentil, Rydell does not have any dialog option to end the quest, as shown here: http://i.imgur.com/BHDDmIp.png
I've gone back to Control four's zone and cleared it of all rogues, then went back to Control four to try all the talk options that are not about killing it. Still nothing back in Pentil. The quest is still in my quest journal, and the nutrient isn't in my items anymore, so it should be all good in theory. Didn't do anything to anger the obeyers either.
Help anyone ? I'm trying an obeyer playthrough, and I don't have the leadership to skip that part.
Thanks.