Krakenscourge (Voidstalker, #2)

Far beyond Human space, a massive alien vessel appears, its systems badly damaged and its crew slaughtered in a mysterious ambush in the depths of the void. The emaciated survivors can only identify their attackers by one word: voidstalker.

A year has passed since the events of Voidstalker, and Gabriel cannot forgive the DNI for its role in those events. . . or forget what he saw. Unknown to him, his enigmatic superiors in the DNI are pressing ahead with plans for his family long in the making, and his wife Aster will find herself trapped between their web of conspiracies and forces determined to thwart them.

Meanwhile, the DNI receives disturbing intelligence about why the alien vessel was attacked in the first place, and Gabriel is sent deep into uncharted space to investigate. Far beyond the safety of Humanity's frontiers, Gabriel is forced to contend with sinister alien forces who will stop at nothing to bend an ancient abomination to their inscrutable wills.

Humanity is not the only race that would sacrifice everything for absolute power.