MANSION of The MISBEGOTTEN!
When Batman goes to visit his old friend Roger Birnam, who is dying, he promises to watch over Birnam's wife Clorinda and his son Enoch. After the funeral, when a man who posed as Birnam's doctor and as a religious articles salesman turns out at the Gotham morgue, victim of a ritual murder, Batman rushes to Birnam Towers to check on Birnam's family.
Batman soon finds himself caught in a Satanic cult ritual, with the little Enoch as the leader. Batman is easily captured, but he is saved by the arrival of the Phantom Stranger. Together, Batman and Phantom Stranger try to find a way to stop the cultists, but Batman is captured and offered as a sacrifice to Enoch, the warlock leader of the cult. During the ritual, Lucifer appears and takes Batman away, claiming his soul as the ultimate prize. However, it was all a charade staged by the Phantom Stranger to save Batman and once again, they start working to bring down the evil worshippers. Taking Enoch and bringing him to a psychiatric ward, Batman is shocked to find the boy has no knowledge of the occult, and deduces that the Birnams had two children not just one.
Returning to the Birnam residence, Batman is forced to battle Clorinda and the evil Enoch with the help of the Phantom Stranger. However the appearance of Roger's ghost scares Clorinda so badly she falls over the railing of a stairwell to her death along with her evil son, Enoch. Afterwards, the Phantom Stranger moves away to find the next mystery and Batman makes a promise to take care of Roger's good son, Roger, Jr.