Mercury in the 12th house

The 12th house covers solitude, retreat and what happens out of view. Mercury here thinks quietly and usually does its best work alone. Intuition arrives before the reasoning behind it, so these people often know something without being able to say how. Research, writing and behind-the-scenes analysis suit them. Speaking up in a crowd is harder than it ought to be, and a mind this private can rehearse a worry for weeks without ever saying it out loud.