"Perhaps not, Mr. Ferris. She is a young lady who can keep her own counsel."
"She has no secrets that I know of," said Ferris, haughtily.
Gebb shrugged his shoulders. "She has one about you," he said calmly.
"Indeed!" replied the other with sarcasm. "And do you know what it is, Mr. Gebb?"
"I did not know when I saw her, but I know now. Miss Wedderburn is aware that you killed Miss Gilmar."
"Did she say so?" asked Ferris, anxiously.
"No; but I guess that is her secret. You are guilty, you know."
"I swear I am not!" rejoined Ferris, vehemently. "I never saw Miss Gilmar. I did not murder her. I know nothing about the woman."
"Do you know anything about the diamond necklace?"
"The diamond necklace!" stammered Ferris, changing colour, and with a visible start, for this leading question evidently took him by surprise.