"Yes. I have ascertained that a third person was in the Winding Lane on that night when Milly and Lovel met."

"Who is the person?"

"Catinka, the Polish violinist," replied Paul; and forthwith he told Iris all that he had learned regarding the rainbow feather from Dr. Lester.

"It certainly looks as though she had been there," said Iris thoughtfully; "but it is impossible that she could have killed my sister."

"Why? From all accounts she is in love with Herne."

"I don't believe she is!" insisted Miss Link. "Mr. Herne's explanation to my father is far more likely. I fancy her association with him is founded on patriotic grounds. She knows that he is rich and enthusiastic, and wishes to secure him as a member of her ridiculous society. With his money she could do a great deal towards her object of inciting a revolt against Russia."

"That is very probable. But on these grounds I do not see why she came to Barnstead on the night of the murder."

"Nor I. You must ask her that yourself, Paul," added Iris suddenly. "Is not this the lady you love?"

Paul blushed in his turn. "It is Catinka whom I admired," he replied with an emphasis on the last word; "but I do not love her--at least, not now. My fancy for her has passed away. My heart is free--far more so than yours, Iris."

"What do you mean?" asked his companion, a trifle coldly.