CHAPTER TITLES: 1. Helen's Race with Death; 2. The WInning Jump; 3. A Life in Peril; 4. Helen's Perilous Escape; 5. The Fight at Signal Station; 6 Helen's Wild Ride; 7. Spike's Awakening; 8. A Race for the Right-of-Way; 9. A Close Call; 10. A Dash Through Flames; 11. The Salting of the Superstition Mine; 12. Buried Alive; 13. A Fight for a Fortune; 14. Helen's Race Against Time; 15. Driving the Last Spike.