Deepsix is a novel by American science fiction author Jack McDevitt.

Priscilla "Hutch" Hutchins leads a crew of space archaeologists to investigate a lost civilization on planet Maleiva III (aka Deepsix) with only a window of weeks before the planet is destroyed by the impending collision with a rogue gas giant.

Deepsix was a finalist for the John W. Campbell Memorial Award for Best Science Fiction Novel.

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