The heel of Achilles

"'I'M DONE FOR ... FIND X.1 ... DENE ... YOU MUST ... TOOTH-PASTE ... ' England is at war with Germany and Dene of the Secret Service tries to decipher his fatally wounded colleague's garbled message - potentially vital information for England's survival. Who is X.1? What does the word TOOTH-PASTE signify? Dene must find out and stop X.1, or the Third Reich will strike a crippling blow to England and change the course of the war. And he has just eight days in which to do it ..."--Page 4 of cover.