Cosmic Exodus — John Russell Fearn

Following a civil war in 1971, England is a dystopia controlled by a ruthless dictator whose fiendish schemes include turning cadavers into robots with the help of Dr. Azimov of Vienna. But the dictator's plans pale before those of Brenda Norcross, a brilliant and beautiful female industrialist - actually a bioengineered Martian super scientist in disguise - who plans to enslave the entire planet to provide breeding stock for the dying Martian race currently hiding out in the interior of Uranus.