What did Karana make from dried fish?

Karana, the main character from the book "Island of the Blue Dolphins," made fish oil from dried fish. She used the oil for various purposes:

* Light: She would fill a shell with fish oil and use it as a lamp to provide light at night.

* Cooking: She used the oil to cook her food, giving it flavor and helping to preserve it.

* Medicinal purposes: She used the oil to treat wounds and other ailments.

This shows how resourceful Karana was in utilizing every resource available on the island to survive.