"Humph. Bath ready?"

"Yes, sir."

The Old Man donned his bridge coat over his pyjamas before making tracks for the bathroom.

Suddenly he turned to his servant:

"So you were the man who came into my cabin during the middle watch?"

Scott stammered and went very red in the face. He was a meek, inoffensive man, and stood in deep awe of those set in authority over him.

"No, sir. Please, sir, I didn't," he protested. "I only took on at four bells."

Captain Bullock made no audible comment. He went to the writing-desk to see if anyone had left a chit there. There was none. He gave a swift, comprehensive glance at the book-shelf where, among other volumes, were the three separate code-books by which the owners and consignors were able to communicate with the ship. They were in their usual places.

The Old Man smiled grimly as he put a hastily formed suspicion from his mind.

"All right," he said gruffly. "Carry on."