Keys to the Kingdom — Derek Fee

When a dying millionaire launches a scheme to wipe out the Saudi Arabian Royal Family and create chaos in the Kingdom it brings two men into explosive conflict. Arthur St. John Worley, the MI6 agent in Riyadh wants justice for his brother's murder and Patrick Gallagher, an international terrorist wants to avenge the death of his wife and unborn child at the hands of the Saudis. Worley is obsessed with bringing Gallagher to justice and Gallagher wants one last successful terrorist operation. Worley's only ally is Mary Jo Rosinski, a disaffected female CIA operative in Riyadh. The stakes could not be higher. If Gallagher's plan succeeds, the demise of the Al Sauds will affect not only the future of the Kingdom but will also create chaos across the globe.