"Sh!" interrupted Frederik.
There was a pause. Then he rose.
"Who came into the room?" he asked in a strange voice.
He lit a match and waved it slowly in the direction of the hall door. It was extinguished instantly as if the wind had blown it out. He lighted another, saying:
"We're sitting in the darkness like owls. Who came in?" he demanded again.
There was no answer as he peered around the room, holding the match toward first one corner and then another.
"I didn't hear any one," said the Colonel.
"Nor I," added Mrs. Batholommey.
"No," said Mr. Batholommey.
"I was sure some one came in," Frederik said in a strange voice.