I would be down for an illustrated SCP installment with a creepy, ambiguous ending.
OK, I'll bite: SCP?
lifemcs linked, but unless Daphne followed and went down the rabbit hole.
http://www.scp-wiki.net/The SCP Foundation is a collaborative writing wiki...thing, based around the eponymous organization's efforts to
Secure,
Contain, and
Protect. The main entries in the site are listings of anomalous objects, creatures or phenomena, each referred to by numerical designations (eg SCP-056). Entries begin with the containment procedures for the SCP (or 'skip') in question, followed by a description of its nature. Some of them get really creative, hiding secrets about the nature the particular SCP within its entry.
There are also a lot of stories (in various canons) on the site based around operations of the Foundation itself. As lifemcs mentioned, there's definitely a X-Files/extra-governmental nature to the Foundation. The recent video game 'Control' seems to draw some heavy inspiration from the SCP Foundation, but it isn't exactly unique in fiction. I remember thinking the TV series "Warehouse 13" was like a much more light-hearted version of the Foundation, but any sort of fictional secret extra-governmental entity fits along those lines (Men in Black, etc).
A lot of the SCPs have properties that fall into some version of mind control. Some controlling hosts, some changing perception, some that are essentially ideas that can be passed like a virus, etc.
I've definitely seen ideas for this kind of organization pop up in Mind Control fiction before, with organizations that contain/police mind controllers to some degree. I think Bill Pratt has played around with it a bit.
