The Barbarians — Elena Dorothy Bowman

A Crlllion Armada is detected heading toward Earth. And a single battlecruiser, with the last of the civilized captives fleeing from Crlllion on board, is aiming to stop them.

The newly-launched Plieades is vulnerable Can the Pleiades stop the madman's apparent suicide attempt? the fate
of Joshua's two sons weighs in the balance. If they fail, can Earth survive?