Once again the mysterious box takes the golden retriever Ranger back in time, and he finds himself on Robert Falcon Scott's ship, the Terra Nova, headed for Antarctica, where his mission is to save Jack Nin, a Chinese-Maori stowaway from New Zealand, from the blizzards, unstable ice, and the other hazards that lie ahead for the doomed expedition.
British Antarctic ("Terra Nova") Expedition (1910-1913) -- Juvenile fiction.
Golden retriever -- Juvenile fiction.
South Pole -- Juvenile fiction.
Time travel -- Juvenile fiction.