“That Jenny person must be further grilled. She hasn’t told all she knows. She was in Mr. Gately’s employ but a short time and yet she picked up a lot of information. But she hasn’t divulged it all, not by a long shot!”

“How do you know all this?” asked Olive, wonderingly.

“I’ve read the papers. I have an unbreakable habit of reading between the lines, and I think Miss Jenny has been persuaded by somebody to suppress certain interesting bits of evidence that would fit right into our picture puzzle.”

“May I come in?” said a gentle voice, and Mrs. Vail appeared in the doorway.

As we rose to greet her, Olive presented Mr. Wise, and then Mrs. Vail permitted herself the luxury of a stare of genuine curiosity.

His whimsical smile charmed her, and she was most cordial of speech and manner. Indeed, so absorbed was she in this new acquaintance that she didn’t even see Zizi, who sat, as always, back and in the shadow.

“Don’t let me interrupt,” said Mrs. Vail, fluttering into a chair. “Just go on as if I were not here. I’m so interested, just let me listen! I won’t say a word. Oh, Olive dear, did you show Mr. Wise the letter?”

“No; it’s unimportant,” replied the girl.

“But I don’t think it is, my dear,” Mrs. Vail persisted. “You know it might be a—what do they call it?—a clew. Why, I knew a lady once——”

“A letter is always important,” said Zizi from her corner, and Mrs. Vail jumped and gave a startled exclamation.