“I suppose I must,” she grudgingly conceded. “However obtained, a summons from the police cannot be ignored even by Peter Strange’s daughter.”

Another man might have displayed his triumph by smile or gesture; but this one had learned his role too well. He simply said:

“Very good. Shall it be at once? I have a taxi at the door.”

But she failed to see the necessity of any such hurry. With sudden dignity she replied:

“That won’t do. If I go to this house it must be under suitable conditions. I shall have to ask my brother to accompany me.”

“Your brother!”

“Oh, he’s safe. He—he knows.”

“Your brother knows?” Her visitor, with less control than usual, betrayed very openly his uneasiness.

“He does and—approves. But that’s not what interests us now, only so far as it makes it possible for me to go with propriety to that dreadful house.”

A formal bow from the other and the words: