Balance of Power: Daedalus Mission, Book Five

The planet Attica has two continents: Lambda and Delta. The indigenous alien population being restricted to Delta, Earth's colony was planted on Lambda. Before the arrival of the Daedalus, two sailing ships had set out from Lambda to cross the ocean separating the two continents, and neither had returned. Now a third is on its way, and Mariel Valory and Alex Alexander of the Daedalus have hitched a lift, in order that Mariel might use her talent to try to make contact with the aliens. Unfor...