Upon this, a wild idea came into my head. I answered, "I am thinking as you directed me to do."

The medium sat with her arms folded, looking steadily at the centre of the table. For a few moments there was silence. Then a series of irregular knocks began. "Are you present?" said the medium.

The affirmative raps were twice given.

"I should think," said the doctor, "that there were two spirits present."

His words sent a thrill through my heart.

"Are there two?" he questioned.

A double rap.

"Yes, two," said the medium. "Will it please the spirits to make us conscious of their names in this world?"

A single knock. "No."

"Will it please them to say how they are called in the world of spirits?"