ALMUTEMMercury in House 12
Mercury represents the way you think, speak and learn. House 12 is the house of what stays hidden: retreat, what goes on behind the scenes, secret fears and what holds you back within. It's a difficult place, but also one of silence and of the inner life.
The twelfth house — of hidden enemies, confinement, grave illness, and sorrows — is cadent and averse, and Mercury here turns its keenness toward what is concealed. It inclines toward a mind given to secrecy, solitary study, and recondite matters, toward discreet dealings, and toward secret enemies who use the word, intrigue, or slander; being lord of the nerves, it may bring restlessness, insomnia, or afflictions of the spirit lived in silence. Well disposed, it gives a subtle ingenuity for behind-the-scenes work, investigation, and what is done far from sight; afflicted, it arms defamation, deceptions by hidden hands, and a mind tormented by secret cares.