Why would you think it's "in from the cold" that's MSQ, and there's PLENTY of stuff for it.

No, the three that literally have no in game help... yha know, THOSE three...
Like the one in ARR and, was it ONE in HW? None in any other though that I remember.

And first reply actually said the important stuff, any attempt to google hints will end up with a guide that spoils it completely, but it isn't hard to solve.