The ocean being on its best behavior nearly everybody appeared triumphantly on deck. There were, however, several passengers who maintained exclusiveness in their staterooms; and among these were two German gentlemen who preferred the stateroom they shared in common. However, they took the air sometimes, and always rather late at night.
Evidently they were commercial gentlemen, for they sent several wireless messages to Cologne during the voyage, using a code of their own which seemed to concern perfumes and cosmetics and, in particular, a toilet soap known as Calypso soap.
In return they received several wireless messages, also apparently in some commercial code, and all mentioning perfumes and Calypso soap.
And a copy of every code message which they dispatched or received was sent to the Captain of the Zeeduyne, and that affable and weather-reddened Belgian always handed these copies to the tennis champions of New Zealand, who spent considerable time poring over them in the only spot on the steamer which was absolutely safe from intrusion—the Captain's private quarters.
Then, in their turn, as the steamer drew nearer to the Belgian coast, they sent a number of wireless messages in private code. Some of these messages were directed to the British Consul at Maastricht, some to the British Ambassador at Brussels, some to private individuals in Antwerp.
But these details did not interfere with the young men's social activities on board, or with their popularity. Wherever Halkett and Gray walked, they walked surrounded by maidens and pursued by approving glances of relatives and parents.
But the two German gentlemen who kept their cabin by day and prowled sometimes by night were like Mr. Kipling's cat; when they walked they walked by their wild lone. Only the chaste moon was supposed to notice them. But always either Halkett or Gray was watching them, sometimes dressed in the jaunty uniform of a deck steward, or in the clothing of a common sailor, or in the gorgeous raiment of a ship's officer. The two Germans never noticed them as they walked in the dark by their wild lone.
And always while one of the young men watched on deck, the other ransacked the stateroom and luggage of the gentlemen from Germany—but ransacked in vain.
As the Zeeduyne steamed into the Scheldt, several thousand miles away, in the city of Washington, the French Ambassador telegraphed in cipher to his Government that the secret plans and formula for the Harkness shell, which had been acquired by England from the United States Government, had been stolen on the eve of delivery to the British Ambassador; that French secret agents were to inspect the arrival of all Dutch, Belgian, and German steamers; that all agents in the French service resident or stationed near the north or northeastern frontier of France were to watch the arrival of all strangers from Holland or Belgium, and, if possible, follow and observe any individual who might be likely to have been involved in such a robbery.
Immediately, from the Military Intelligence Department in Paris orders were telegraphed and letters sent to thousands of individuals of every description and station in life, to be on the alert.