"Good!" muttered Nick. "I'll back these ghosts against any that Colonel Richmond can raise in his house."
Almost immediately there was the sound of a voice in the room beyond the doors.
"Does any person present recognize a departed friend?" it said.
Then Colonel Richmond's voice arose, hoarse and trembling with emotion.
"Aunt Lavina," he said, "tell me what you wish me to do. I will obey you absolutely."
"I thought so," chuckled the detective. "The colonel has come to attend a spiritualistic seance."
CHAPTER VI.
A ROUND-UP OF SPOOK-ARTISTS.
It began to look very much as if Horace Richmond's theory was correct. Certainly the colonel had fallen again into the clutches of bogus mediums.