"I must," replied the barrister, quietly. "Kilsip is firmly persuaded that Moreland committed the crime, and I have the same dread of his pertinacity as you had of mine. He may find out all."

"What must be, must be," said Fitzgerald, clenching his hands. "But I hope no one else will find out this miserable story. There's Moreland, for instance."

"Ah, true!" said Calton, thoughtfully. "He called and saw Frettlby the other night, you say?"

"Yes. I wonder what for?"

"There is only one answer," said the barrister, slowly. "He must have seen Frettlby following Whyte when he left the hotel, and wanted hush-money."

"I wonder if he got it?" observed Fitzgerald.

"Oh, I'll soon find that out," answered Calton, opening the drawer again, and taking out the dead man's cheque-book. "Let me see what cheques have been drawn lately."

Most of the blocks were filled up for small amounts, and one or two for a hundred or so. Calton could find no large sum such as Moreland would have demanded, when, at the very end of the book, he found a cheque torn off, leaving the block-slip quite blank.

"There you are," he said, triumphantly holding out the book to Fitzgerald. "He wasn't such a fool as to write in the amount on the block, but tore the cheque out, and wrote in the sum required."

"And what's to be done about it?"