Originally, his scheme was to start a campaign against British mercantile ships, destroying them without leaving a trace. By so doing he hoped to deal a paralysing blow at a section of seaborne resources of the British Empire, which the interruption of the Argentine and Brazilian trade would embrace. There was also a large proportion of British shipping still making the Horn passage, and already a number of vessels bound to and from the Pacific had been sunk. In following the policy of secret destructive action Samuda also hoped that suspicion would fall upon certain South American republics other than Rioguay. His hopes might have been realized but for the series of engagements following the attack upon the decoy-ship _Complex_. The few survivors from the _Cerro Algarrobo_ had "given the show away". Separately cross-examined, they had admitted their nationality readily enough. The mere hint that if they could claim no governmental covering authority for their acts they would be classed as pirates and treated accordingly, was sufficient to compel them to hasten to give a full account of the cruise of the ill-fated _Cerro Algarrobo_. These facts were communicated by wireless to Bermuda and thence cabled to the Admiralty. A Declaration of War--declaring a war that was already in progress--followed. That same day, Brian Strong and Peter Corbold landed at Southampton. Seven weeks had elapsed from the time they crossed the Rioguayan frontier. The Indians, with whom they had fallen in, had proved very hospitable and had nursed them both through a bout of fever. On their recovery, Brian Strong and his nephew were conveyed down the river in canoes of their Indian benefactors, and eventually reached La Guayra, the port of Caracas, the Venezuelan capital. From La Guayra they took steamer to Barbadoes, thence to Southampton. The news of the outbreak of war with Rioguay did not surprise either uncle or nephew, but what did was the bald information that two British seaplanes had routed six hostile flying-boats. They rejoiced after the manner of their kind--without demonstrations. Nevertheless, Brian Strong was puzzled. Although as a patriot he was elated at the news of the aerial combat, it puzzled him to think that the Rioguayans had failed to take advantage of the wonderful machines that owed their existence to his brains. "It's the human element that counts, all the time, Peter," he remarked. "If the Rioguayan air fleet doesn't put up a better show in the future, I needn't have gone to the trouble of bringing this gadget home." He tapped his breast coat pocket, wherein lay one of the essentials of his invention. The others he had also succeeded in bringing to England in spite of difficulties--the latest being a wordy encounter with a self-important Customs official at Southampton Docks.