"What you would call a costume party," he shot back, slipping into a parody of a flat midwestern accent. "To make it deniable." Back to the usual British accent now, the one she couldn’t quite place. "Because it would make a hell of a diplomatic mess to send a military team into China. This way, though, they can shrug their shoulders: ‘It’s those crazy Russian mafia guys, we have no control over them, there was nothing we could do.’ "