Johnny Fedora plays in the big leagues of international espionage. This involves an awareness of all the electronically controlled atomic gadgets that can be used to wipe out the enemy along with everything else. Fedora's opposite number, left over from Undertow, is Feramontov, who lobs little missiles of enormous potential destruction. Detection isn't easy in non-technological Spain, but jaunty Johnny F. squeaks through and Feramontov fades out in the tradition of Holmes' Dr. Moriarty -- undoubtedly to return.