even more briskly than before, almost running.
There was no sign anywhere of the shorter thick-set man who had been
following him. Something in the appearance of the figure in the street
below struck her all at once as vaguely familiar. She wondered if it
could be any one she knew.

Presently he came directly opposite the light on the other side of the
Drive so that it shone for an instant full on his face. Jane looked and
shuddered. Never in all her life had she seen any man's countenance so
convulsed, not with pain, but with a soul-terrifying expression of hate,
of virulent, murderous hate.

Distorted though the man's face was with such bitter frightfulness, she
recognized him, not as any one she knew, but merely as one of the
tenants in the same apartment building.

"It's one of the people next door," she said to herself and in
verification of her identification, as he approached the building, the
young man cast a swift glance over his shoulder, and then, as if
satisfied that he was unobserved, dashed hurriedly in at the entrance.

Jane, more than ever wrought up with fear and dread of she knew not
what, sprang hastily into bed and drew the covers about her shoulders.
As yet she did not lie down but shiveringly waited. Presently she heard
the elevator stop. She heard the key opening the door of the next
apartment. In a few minutes she heard the man moving about his bedroom,
separated from her own room by a mere six inches of plaster and paper,
or whatever it is that apartment-house walls are made of.

What could have happened? She was certain that something terrible had
occurred in which the young man next door had played a tragic, perhaps
even a criminal part. She tried in vain to conjecture what circumstance
could have been responsible for the look of hatred she had seen on his
face. She wondered what had been the fate of the man who had been
following him. Had they quarrelled and fought? What could have been the
subject of their quarrel?

She tried to summarize what she knew about the people next door, and was
amazed to discover how little she had to draw upon. As in most New York
apartment houses so in Jane's home all the tenants were utter strangers
to each other, one family not even knowing the names of any of the
others. Occasionally, to be sure, one rather resentfully rode up or down
in the elevator with some of the other tenants but always without
noticing or speaking to them. Jane's family had been l