The Devil's Sonata — Susan Hufford

The Master Of Madness

Lovely Hilda Hughes had heard the stories about the man known as Dr. Manning Whitlock. Though he claimed to be a reputable psychiatrist, using new and brilliantly successful experimental methods, there were those who said he derived his power not from science but from Satan, and that he did not serve the god of healing but the Lord of Hell.

Now Hilda had come to the fear-haunted mansion of Vahalla to find out the truth about Whitlock and what he had done to Hilda's young half-sister, who once had been a child of light, and now seemed a slave of darkness. But in this house where eerie music echoed in the night, Hilda herself found that she could not resist the power of this man she so desperately feared, as a diabolically orchestrated symphony of evil moved toward its mind-destroying crescendo of terror…