[The picture begins to sway slightly to and fro on the wall.
Doctor. Why, the picture is moving!
Morris. [Turning furiously on the Conjurer.] You were in the room before us. Do you reckon that will take us in? You can do all that with wires.
Conjurer. [Motionless and without looking up from the table.] Yes, I could do all that with wires.
Morris. And you reckoned I shouldn't know. [Laughs with a high crowing laugh.] That's how the derned dirty Spiritualists do all their tricks. They say they can make the furniture move of itself. If it does move they move it; and we mean to know how.
[A chair falls over with a slight crash.
[Morris almost staggers and momentarily fights for breath and words.
Morris. You ... why ... that ... every one knows that ... a sliding plank. It can be done with a sliding plank.
Conjurer. [Without looking up.] Yes. It can be done with a sliding plank.
[The Doctor draws nearer to Morris, who faces about, addressing him passionately.