After Karana's father dies, the new chief goes off and brings back a ship, and takes everyone in the village except Karana and her brother, Ramo.
Ramo is killed by the wild dogs on the island, leaving Karana alone.
After wounding the leader of the wild dogs, Karana finds him alone later and takes them back to her house. After taming them, Karana names the dog Rontu.
The Aleuts come back to hunt otter and bring a girl with them. She becomes friends with Karana, but has to leave. Karana realizes how lonely she is.
After Rontu dies, Karana finds a dog that is Rontu's son and tames them. Men come to the island and find Karana, telling her that the ship that the tribe left on sunk during a storm. Karana decides to leave the island with them.