Aunt Amy sank back with a long sigh; her lined face grew suddenly peaceful. Esther, who had observed the little scene with wonder, said nothing, but taking the tablets, kissed her Aunt, and led the way out in silence.

"Well?"

As they stood together in the hall she could see the amused twinkle in the doctor's eye.

"I don't like it! You lied to her!"

"So I did," cheerfully.

"These tablets," holding up the glass vial, "what are they?"

"Tonic."

"And the medicine which you are going to send later?"

"More tonic."

"But she thinks—you gave her to understand that they are the antidote for the poison which you know does not exist."