Written by William Le Queux
Copyright 1909
A collection of 14 connected adventures of Ray Raymond of British Intelligence. The stories are:How the Plans of Rosyth Were StolenThe Secret of the Silent SubmarineThe Back-Door of EnglandHow the Germans Are Preparing for InvasionThe Secret of the New British AeroplaneThe Secret of the New Armour-PlatesThe Secret of the Improved "Dreadnoughts"The German Plot Against EnglandThe Secret of Our New GunThe Secret of the Clyde DefencesThe Peril of LondonHow Germany Foments StrifeOur Wireless SecretsPlaying a Desperate Game