A full-blooded, stirring yarn, which grips the interest and carries the reader through a host of adventures to a breathless and highly exciting climax. This is a yarn told in the true Wallace tradition and Major Wilson is to be congratulated on maintaining the same atmosphere of quick-fire action.

Sir Leonard Wallace, the famous chief of the Secret Service, finds that the peace of Europe is threatened by a gang engaged in the theft and sale of national secrets. Wallace gets busy, and is assisted by the gang leader's own fear of him and his anxiety to get the Englishman into his power.