"Why," he began, "who wrote this?"

"That's the note that was delivered to us a while ago," answered Mr. Royce. "You know as much about it as we do. But it seems to me a pretty important piece of evidence. I turn it over to you."

"Important!" cried Singleton. "I should say so! Why, gentlemen," and his eyes were gleaming, "this was written either by an accomplice or by the woman herself!"

My chief nodded.

"Precisely," he said. "I'd get on the track of the writer without delay."

Singleton turned and whispered a few words to a clerk, who hurried from the room. Then he motioned to two smooth-faced, well-built men who sat near by, spoke a word to the coroner, and retired with them into the latter's private office. The reporters crowded about us with congratulations and questions. They scented a mystery. What was the matter with Singleton? What was the new piece of evidence? Was it the note? What was in the note?

Mr. Royce smiled.

"Gentlemen," he said, "I trust that my connection with this affair will end in a very few minutes. For any further information, I must refer you to the district attorney—the case is in his hands."

But those men he had summoned into his office were Karle and Johnston, the cleverest detectives on the force. What did he want with them? Mr. Royce merely shrugged his shoulders. Whereat the reporters deserted him and massed themselves before the door into the coroner's room. It opened in a moment, and the two detectives came hurrying out. They looked neither to the right nor left, but shouldered their way cruelly through the crowd, paying not the slightest attention to the questions showered upon them. Then the district attorney came out, and took in the situation at a glance.

"Gentlemen," he said, raising his voice, "I can answer no questions. I must request you to resume your seats, or I shall ask the coroner to clear the room."