When disaster traps the adults of LunaBase without air or power, only young Kaho and his friends are left to rescue them. Using the ancient Apollo 17 Moon Rover, the group races against the clock to Farside--and in doing so, makes a discovery that changes the future of the colony.

Private investigator Claire Turnbull meets the ghost of Old West lawman Wyatt Earp over a cooling corpse in San Francisco, and is dismayed to discover that only she can see or hear him. Reluctantly, she teams with the ghost to solve a murder mystery that threatens her own life: who killed a bigamous thief and stole a 150-year-old ship's log? Was it just another in a long string of cons, or is there really a hoard of gold hidden in San Francisco? The hunt takes Claire and Wyatt from the high rises of the modern city into a murky past buried under San Francisco.

The San Francisco police think Allison Farley drowned during the Alcatraz Triathlon. Her boyfriend doesn't agree, and hires private eye Claire Turnbull to find out what happened. What he doesn't know is that Claire has a secret partner, the ghost of Old West lawman Wyatt Earp. They dig into a case that gets more tangled with every new clue. The final answers may be hidden on Alcatraz, the infamous prison in San Francisco Bay.