The Secret of the Mosque — Barbara Cartland

International espionage and intrigue. Two great enemies â€" the Russian and Ottoman Empires conspiring to defeat the British Empire. A father at death's door and mother at her wits' end. 

And lovely young Rozella Beverly, embroiled by events beyond her control in a perilous spying mission in Constantinople at the heart of the Ottoman Empire. 

In a desperate bid to save her family, Rozella also strives to save the British Empire and in the process to earn the respect, perhaps even the love, of her haughtily handsome, woman-hating spymaster, Lord Mervyn.