He put down the receiver, and, leaving the station, walked slowly round the corner on to the Embankment. A few yards past the entrance to the Yard, on the opposite side of the road, were a couple of empty seats facing the river. He crossed over toward the first one, and, having lighted himself a cigarette, sat down patiently to wait for Joe. Just as the opening strokes of a quarter to two were chiming out from the clock tower, the latter made his appearance. In a quiet and unobtrusive fashion he slipped suddenly into view round the pedestal of Boadicea's statue, and at the same moment a grin of recognition broke over his face as his eyes lit upon Colin. He quickened his steps, and came rapidly up to the seat. "Thought you might be early, doctor," he began, "so I come along a bit ahead o' me time on purpose." He looked round inquiringly. "But where's the young laidy?" Colin, who had thrown away his cigarette, rose to his feet. "I've got some bad news for you, Joe," he said. "Miss Seymour has disappeared." Joe's mouth opened, and he gazed blankly at his companion. "Disappeared!" he repeated. "She was taken away in a car at eight o'clock this morning. Some one tricked her into leaving the studio by means of a false message." With a muttered oath Joe clutched him by the arm. "Wot, the saime swine that tried to do you in?" Colin nodded. "Unless I'm wrong, it's the man I spoke to you about--Major Fenton; the one who was talking to 'Spike' Cooper outside the station." "Well, if yer knows that," exclaimed Joe, "wot the 'ell are we messin' abaht 'ere for? Why don't we go an' wring 'is blarsted neck?" "Because we've got to find him first," returned Colin curtly. "That's why I've been waiting to keep this appointment with the Inspector. The police are after him too, so they may be able to help us." Joe wiped his forehead with the back of his hand. "For Gawd's sake let's get over and see 'em, guv'nor. I wouldn't 'ave no 'arm come to that young laidy, not for all the money in the Bank of England." Colin gave a queer laugh. "I think I can understand the feeling," he said. They crossed the road toward the Yard, where the same two constables were still on duty. "You're all right now, mister," remarked one of them. "I saw him come in by the other way a few minutes ago." With a nod of thanks Colin passed through the gates, and, followed by Joe, who kept casting mistrustful glances to right and left, walked rapidly up to the main entrance. The recipient of his five-shilling tip stepped forward to meet him. "Mr. Marsden has just come, sir," he announced. "Told me that when you and your party arrived I was to bring you in straight away." "Well, this is my party," said Colin. "At least, all of it that's likely to turn up."