For 12,000 light years and more than 8 centuries, the troops of Earth have pursued the faceless alien enemy. Now, one of the alien ships has crashed on the water world known as Planet Five. It rests in the ocean's depths, an answer to an eternity of questions. All the humans have to do is recover it!

Aquarian Attack 1989, Ace Books

ISBN-13: 9780441028221

Mass-market paperback

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