As he went jubilantly to bed, the vision of a trip to the historic city of Bruges bulked large in his imagination.

Chapter XVI.
A Tale of Two Cities

Next morning French had an interview with his chief at the Yard at which he produced the torn hotel bill, and having demonstrated the methods by which he had come to identify it with the Grand Hôtel du Sablon in Bruges, suggested that a visit there might be desirable. To his secret relief Chief Inspector Mitchell took the same view, and it was arranged that he should cross as soon as he could get away.

On his return to his room he found Cheyne waiting for him. The young man seemed to have aged by years since his frenzied appeal to the Yard, and his anxious face and distrait manner bore testimony to the mental stress through which he was passing. Eagerly he inquired for news.

“None so far, I’m sorry to say,” French answered, “except that we have found that Miss Merrill did return to her rooms that night,” and he told what he had learned of Joan’s movements, as well as of his visit to Hackworth’s garage, and of Blessington’s exchange of cars. But of Bruges and the hotel bill he said nothing. Cheyne, he felt sure, would have begged to be allowed to accompany him to Belgium, and this he did not want. But in his kindly way he talked sympathetically to the young man reiterating his promise to let him know directly anything of importance was learned.

Cheyne having reluctantly taken his leave, French turned to routine business, which had got sadly behind during the last few days. At this he worked all the morning, but on his return from lunch he found that further news had come in.

Sergeant Burnett, the man he had put on the Waterloo Station job, was waiting for him, and reported success in his mission. He had, he said, spent the whole of the day from early morning at the station, and at last he had obtained what he wanted. A taximan on a nearby stand had been called to the footpath at the arrival side of the station at about 2:00 p.m. He had drawn up behind an old black car, which he had thought was a Napier. His own fare, a lady, kept him waiting for a few seconds while she took a somewhat leisurely farewell of the gentleman who was seeing her off, and during this time he had idly watched the vehicle in front. He had seen an invalid lady in a sable colored fur coat being helped in. There was a second lady with her, and a tall man. The three got in, and the car moved off at the same time as his own. Sergeant Burnett had questioned the man on the appearance of the travelers, and was pretty certain that they were Joan, Susan, and Sime. Dangle, so far as he could learn, was not with them.

French felt the sudden thrill of the artist who has just caught the elusive effect of light which he wanted, as he reflected how sound had been his deduction. He had considered it likely that these people would use Waterloo Station to effect the change of cars, and now it seemed that they had done so. Nothing like a bit of imagination, he thought, as he good-naturedly complimented the sergeant on his powers, and dismissed him.

Having too much to see to at the Yard to catch the 2:00 p.m. from Victoria for Ostend, he rang up and engaged a berth on the Harwich-Zeebrugge boat, and that night at 8:40 p.m. he left Liverpool Street for Belgium.

Apart from his actual business, he was looking forward with considerable keenness to the trip. Foreign travel had become perhaps his greatest pleasure, and he had never yet been in Belgium. Moreover he had always heard Bruges mentioned as the paradise of artists, and in a rather shamefaced way he admitted an interest in and appreciation of art. He had determined that if at all possible he would snatch enough time to see at least the more interesting parts of the old town.