"Ethyl chloride!" he muttered, wrapping the pieces carefully in a
paper and putting them into his pocket.

An instant later he crossed the room to the window and examined
it.

"Look!" he exclaimed.

There, plainly, were marks of a jimmy which had been inserted near
the lock to pry it open.

"Miss Dodge," he asked, "might I--might I trouble you to let me
see your arm?"

Wonderingly she did so and Kennedy bent almost reverently over her
plump arm examining it.

On it was a small dark discoloration, around which was a slight
redness and tenderness.

"That," he said slowly, "is the mark of a hypodermic needle."

As he finished examining Elaine's arm he drew the letter from his
pocket. Still facing her he said in a low tone, "Miss Dodge--you
did write this letter--but under the influence of the new
'twilight sleep.'"

We looked at one another amazed.

Outside, if we had been at the door in the hallway, we might have