"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."

"No. They are the antidote for a poison which does exist--medicine for a
mind diseased."

"It's--it's like taking advantage of a child."

"So it is, exactly. I suppose you have never taken advantage of a child,
for the child's good?"

"Certainly not."