The Power-House

When an international anarchist organization called The Power-House threatens to destroy Western civilization, lawyer and MP Edward Leithen must race against time and his friend Charles Pitt-Lumley, a new Power-House recruit, to restore stability to the Western system.
With keen intellect and instincts, John Buchan's indomitable Sir Edward Leithen features prominently in several other novels, including John Macnab, The Dancing Floor, The Gap in the Curtain, and Sick Heart River.