E.C. Tubb 
Tide of Death 

England was starving when cheap power could have saved her . . . power that would have been available if atomic research had not been forbidden by the watchful League of Peace . . .But two scientists chose to ignore this ban, and soon they launched an experiment-an experiment that succeeded too well, and got out of hand, spreading a tide of black death across the country, threatening the whole planet.Neil Hammond, secret agent for the League of Peace, is sent to investigate, and uncovers a terrifying secret . . .