About the book, from the author's website:
Solomon Gage is a "troubleshooter" for billionaire Dominick Sheffield and his family, handling the shadier aspects of their international business, along with assorted interpersonal problems. When fetching third-generation Sheffield Abby Maynes from an Oakland crackhouse, Solomon is subjected to her drug-fueled mumblings, and hears something he shouldn't have. Always vigilant and fiercely loyal to Dominick, Solomon asks around about the "Africa deal." Turns out the Sheffield sons are involved in some dirty dealings in an effort to gain a stranglehold on the global urnium market.
Solomon's troubles only increase when he can't convince his boss of the boys' scheming, and African mercenaries arrive in San Francisco to protect the interests of the Nigerian government.