As if blinded by his own success and totally unaware of the threatening danger, Hanussen's colossal arrogance and self-assurance seemed to grow daily. He charged his clients fabulous sums - not just for his prophecies but for the influence he flattered himself he had won with the future rulers of Germany. As for women - his "harem" some of the loveliest actresses, dancers and ladies of the aristocracy. Not one lasted long. He drove himself and others at a mad pace - as if he wanted to squeeze everything out of whatever years or months remained of life.

One of the strangest cases of his clairvoyant powers (this is well-documented) was connected with a girl called Grace Cameron; an English girl who had won a beauty competition in Belgium and later drifted to Berlin where she was one of the hostesses at the huge Palais de Dance, a barn-like dance hall which Hanussen loved to visit late at night.

Grace was one of the few women whom Hanussen was apparently unable to bring under his hypnotic influence. She was polite but totally unimpressed by him. Night after night they sat together, drinking champagne, talking very little. After a week or so the clairvoyant gave up any attempt to make Grace his mistress. But she still attracted and fascinated him. And one night he told her:

"You'd like to get away from all this… " and he indicated the dancing crowd, the couples in the small alcoves, the whole sleazy, meretricious atmosphere.

Grace Cameron nodded. She was afraid of Hanussen, and always sensed something menacing and inhuman in him. Yet she went on listening to the hoarse, staccato voice:

"You won't remain here long. You'll marry - a rich and good-looking man. You'll meet him here, under this crystal chandelier. Right here… " and he pointed to a spot on the dance-floor a few yards from the table. His voice was getting low now, he was breathless and his eyes had a glazed, absent look. He seemed to be fighting a nameless, irresistible power that gripped him. Grace Cameron was shivering. "Beware, Miss Cameron!" Hanussen went on, his voice barely audible. "The man... you are going to marry... will also be...  your murderer. I... hear shots... bullets hit you... you collapse... You are dead.