Can two peoples alien to each other coexist on the same world?

Ping, a small, lavender-furred humanoid, has discovered that her peoples' undersea habitat is not as perfect as the high chiefs believe.

As mistakes in the biocomputer and damage to the structure mount, and the chiefs ignore her warnings, she is called upon to create a new colony on land with the aid of humans who live there.

In the human colonies, Kaylyn and others become concerned by the Phren, as their technology is far beyond that of the humans.

Will both peoples survive?