Lie Down With Lions: Ken Follett

When Jane is caught in a deadly love triangle between rival spies Ellis and Jean-Pierre, she becomes entangled in a web of lust, hatred and deception which sweeps them all from terrorist conspiracies in Paris to all out guerilla warfare in Afghanistan. Jean-Pierre and Jane marry and got to work as doctors in the Valley of the Five Lions to help the rebels fighting for their freedom against the Russians. Confronted by extreme violence and danger, Jane desperately tries to get out of the line of fire. Then help comes, unexpectedly, in the form of her husband's greatest enemy...