"She couldn't have learned about it," he said, following his own
trail of thought. "My car brought her from her home to the
house-door. She was brought in to us at once. But don't you see
that if there are other developments, to prove her statements she
--well, she's as innocent as a child, but take Herbert, for
instance. Do you suppose he'll believe she had no outside
information?"

"But it was happening while we were shut in the drawing-room."

"So Elinor claims. But if there was anything to hide, it would have
taken time. An hour or so, perhaps. You can see how Herbert would
jump on that."

We went back, I remember, to speaking of the seance itself, and to
the safer subject of the physical phenomena. As I have said, we did
not then know of those experimenters who claim that the medium can
evoke so-called rods of energy, and that by its means the invisible
"controls" can perform their strange feats of levitation and the
movement of solid bodies. Sperry touched very lightly on the spirit
side.

"At least it would mean activity," he said. "The thought of an
inert eternity is not bearable."

He was inclined, however, to believe that there were laws of which
we were still in ignorance, and that we might some day find and use
the fourth dimension. He seemed to be able to grasp it quite clearly.
"The cube of the cube, or hypercube," he explained. "Or get it this
way: a cone passed apex-downward through a plane."