Belongs in the Arthur Ransome type of story, though there is more sheer adventure and less characterization and humor. A story of young cousins who go on an inland voyage, by Great Lakes and up into Canada waterways, ostensibly on vacation, but actually cloaking government secret service investigations of the activities of alien smugglers over the Canadian line. Good for boys and girls interested in boats and sailing and a good yarn besides. Lacks the amazing vitality of Arthur Ransome's boys and girls.