A FATHER. A FIGHTER. A FINAL SHOWDOWN. The Loner has searched the frontier for his missing children and their vengeful, runaway mother. Now, in fog-shrouded San Francisco, his search ends-and the fight begins. HELL ON FRISCO BAYConrad 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 newl