"You will pardon us for receiving you with so little ceremony. But while we expected you, you on the other hand were not expecting us, and we feared that you might hesitate to come in if the lamp was burning when you opened the door."

Mitchelbourne was now entirely at his ease. He perceived that there was some mistake and made haste to put it right.

"On the contrary," said he, "for I knew very well you were here. Indeed, I knocked at the door to make a necessary inquiry. You did not extinguish the lamp so quickly but that I saw the light beneath the door, and besides I watched you some five minutes through the window from the opposite bank of the pool at the back of the house."

The officers were plainly disconcerted by the affability of Mr. Mitchelbourne's reply. They had evidently expected to carry off a triumph, not to be taken up in an argument. They had planned a stroke of the theatre, final and convincing, and behold the dialogue went on! There was a riposte to their thrust.

The spokesman made some gruff noises in his throat. Then his face cleared.

"These are dialectics," he said superbly with a wave of the hand.

"Good," said the little dark fellow at his elbow, "very good!"

The youth at the door nodded superciliously towards Mitchelbourne.

"True, these are dialectics," said he with a smack of the lips upon the word. It was a good cunning scholarly word, and the man who could produce it so aptly worthy of admiration.

"You make a further error, gentlemen," continued Mitchelbourne, "you no doubt are expecting some one, but you were most certainly not expecting me. For I am here by the purest mistake, having been misdirected on the way." Here the three men smiled to each other, and their spokesman retorted with a chuckle.