"Well," reflected the doctor, "it is rather hard to define in simple language. A 'sensitive' is what is sometimes known as a 'medium.' A human organism so constructed that it can be 'informed,' or 'controlled' (as the phrases go) by those who are—who have—er—who have—passed over."

He looked apologetically about as if to assure the possibly-present Peter Grimm that he had absolutely no intent of using so non-technical a word as "dead."

Peter Grimm acknowledged the compliment with a laugh.

"Oh, say it, Andrew! Say it!" he adjured. "There is no 'death' and there are no 'dead,' as this world understands the words. So one term is as good as another. 'Dead' or 'passed over.' It's all one. Neither phrase means anything. Don't be afraid of offending me."

"And Willem is like that?" asked Kathrien.

"I am sure of it," answered McPherson. "Now, Willem——"

"I think I'd better put the boy to bed!" hastily interposed Mrs. Batholommey, coming between the doctor and his proposed "subject."

"Please!" rapped McPherson. "I propose to find out what ails Willem. That is what I'm here for. And I'll thank you not to interfere, Mrs. Batholommey. I never break in on your good husband's pulpit platitudes, and I'll ask you to show the same courtesy toward me. Now then, Willem——"

"Kathrien," expostulated Mrs. Batholommey, "you surely aren't going to permit——?"

A peremptory gesture from McPherson momentarily checked the pendulum of her tongue. Kathrien, too, was very evidently on the doctor's side.