"Exactly, Kennedy. This fight I'm in is going to be the fight of my life. Just now, in addition to everything else, people are looking to me to find Betty Blackwell. Her mother was in to see me today; there isn't much that she could add to what has already been said. Betty was a most attractive girl. The family is an excellent one, but in reduced circumstances. She had been used to a great deal as a child, but now, since the death of her father, she has had to go to work—and you know what that means to a girl like that."

Carton laid down a new photograph which the newspapers had not printed yet. Betty Blackwell was slender, petite, chic. Her dark hair was carefully groomed, and there was an air with which she wore her clothes and carried herself, even in a portrait, which showed that she was no ordinary girl.

Her soft brown eyes had that magnetic look which is dangerous to their owner if she does not know how to control it, eyes that arrested one's gaze, invited notice. Even the lens must have felt the spell. It had caught, also, the soft richness of the skin of her oval face and full throat and neck. Indeed one could not help remarking that she was really the girl to grace a fortune. Only a turn of the hand of that fickle goddess had prevented her from doing so.

I had picked up one of the evening papers and was looking at the newspaper half-tone which more than failed to do justice to her. Just then my eye happened on an item which I had been about to discuss with Carton when Kennedy entered.

"As a scientist, does the amnesia theory appeal to you, Craig?" I asked. "Now, here is an explanation by one of the special writers, headed, 'Personalities Lost Through Amnesia.' Listen."

The article was brief:

Mysterious disappearances, such as that of Betty Blackwell, have alarmed the public and baffled the police before this—disappearances that have in their suddenness, apparent lack of purpose, and inexplicability much in common with her case. Leaving out of account the class of disappearances for their own convenience—embezzlers, blackmailers, and so forth—there is still a large number of recorded cases where the subjects have dropped out of sight without apparent cause or reason and have left behind them untarnished reputations and solvent back accounts. Of these, a small percentage are found to have met with violence; others have been victims of suicidal mania, and sooner or later a clue has come to light which has established the fact. The dead are often easier to find than the living.

Of the remaining small proportion, there are on record, however, a number of carefully authenticated cases where the subject has been the victim of a sudden and complete loss of memory.

This dislocation of memory is a variety of aphasia known as amnesia, and when the memory is recurrently lost and restored, we have alternating personality. The Society for Psychical Research and many eminent psychologists, among them the late William James, Dr. Weir Mitchell, Dr. Hodgson of Boston, and Dr. A. E. Osborn of San Francisco, have reported many cases of alternating personality.

Studious efforts are being made to understand and to explain the strange type of mental phenomena exhibited in these cases, but as yet no one has given a clear and comprehensive explanation of them. Such cases are by no means always connected with disappearances, and exhaustive studies have been made of types of alternating personality that have from first to last been carefully watched by scientists of the first rank.