Morgan felt in the pit of his stomach an uneasy sensation which was partly the motion of the ship. He said:

"Are you serious, or is this—?"

"You bet I'm serious. So is Whistler. Valvick got the information from him, because Whistler badly needs advice. Old Valvick's story is pretty muddled; but that much is clear. Whistler wonders whether to keep it dark or broadcast the news to the ship. Valvick advised the latter: it's customary. But Whistler says this is a respectable boat, a family boat, and the rest of that stuff… "

Morgan whistled. Peggy went over and sat down beside Warren. She protested stoutly that it was nonsense and she didn't believe it.

"Who is he, Curt? What do they know about him?" she demanded.

"That's just it. Nobody seems to know, except that he's travelling under an alias. You remember, I told you this afternoon that when I was in the radio-room old Whistler seemed to be having a row with the wireless operator?… Well, that was it. He'd got a radiogram. Fortunately, Valvik had the sense to persuade Whistler to let him take a copy of it. Have a look."

From his inside pocket he took an envelope, on the back of which was sprawled in crooked handwriting:

Commander S.S. Queen Victoria, at sea. Suspect Man responsible for Stelly job in Washington and Mac-gee killing here sailed under alias your ship. Federal officer arriving to-night from Washington and will send fuller information. Look out for smooth customers and advise if any suspects.

Arnold, Commissioner N.Y.P.D.

"I don't know anything about this MacGee killing, whatever it is, in New York," Warren went on, "but I know a little about the Stelly business because it raised such a row and looked like magic. It was tied up with the British Embassy. Stelly seems to have been a pretty well-