"Are there no other marks of injection?" he asked.

"On the left forearm, yes. Obviously self-administered. Oh, I don't deny
the habit! But my point is this: the injection in the shoulder was NOT
self-administered."

"Come, Helen," said Cumberly, taking his daughter's arm; for she had
drawn near, during the colloquy--"you must get to bed."

His face was very stern when he turned again to Mr. Hilton.

"I shall return in a few minutes," he said, and escorted his daughter
from the room.




VI

AT SCOTLAND YARD


Matters of vital importance to some people whom already we have met, and
to others whom thus far we have not met, were transacted in a lofty and
rather bleak looking room at Scotland Yard between the hours of nine and
ten A. M.; that is, later in the morning of the fateful day whose advent
we have heard acclaimed from the Tower of Westminster.

The room, which was lighted by a large French window opening upon a