HELL ON FRISCO BAY Conrad Browning is The Loner, a man on a mission, crossing the country—and crossing a lot of bad men—to rescue his kidnapped young twins. The trail has led him all the way to San Francisco’s perilous red light-district, where a crime lord is the proud father of newly adopted twins. The Loner knows his children when he sees them. But they’re hostage to a brutal, violent mob fe...