The political intrigue aboard Deep Space 9 ™ escalates when Gul Macet's warship arrives at the station with an unexpected passenger. Cardassian Ambassador Natima Lang has returned to the station on a mission of hope, but it's one that will bring back old wounds and old ghosts. As tensions rise on all sides, Colonel Kira Nerys discovers that the line between friend and foe is narrower than she ever imagined.

Elsewhere, the crew of the damaged Starship Defiant forges an uneasy alliance with an unusual alien species -- one whose unique biological makeup is the key to the balance of power in that region of the Gamma Quadrant. As the crew becomes ensnared in a web of deceit, Lieutenant Ezri Dax and Ensign Thirishar ch'Thane struggle to stave off a genocidal civil war.

CARDASSIA: The last world ravaged by the Dominion War is also the last on which Miles O'Brien ever imagined building a life. As he joins in the reconstruction of Cardassia's infrastructure, his wife Keiko spearheads the planet's difficult agricultural renewal. But Cardassia's struggle to remake itself -- from the fledgling democracy backed by Elim Garak to the people's rediscovery of their own spiritual past -- is not without opposition, as the outside efforts to help rebuild its civilization come under attack by those who reject any alien influence.

ANDOR: On the eve of a great celebration of their ancient past, the unusual and mysterious Andorians, a species with four sexes, must decide just how much they are willing to sacrifice in order to ensure their survival. Biological necessity clashes with personal ethics; cultural obligation vies with love -- and Ensign Thirishar ch'Thane returns home to the planet he forswore, to face not only the consequences of his choices, but a clandestine plan to alter the very nature of his kind.

Committed to that difficult road, Voyager's crew was rewarded with unimaginable experiences on strange and fantastic worlds, encountering exotic alien species and astonishing phenomena...and challenged along the way by conflicts from within as well as from without. Yet none of their adventures tempered their shared determination to find a way back to friends and family.

A wake of destruction and loss threatens the U.S.S. Voyager ™ as Chakotay assumes command. Grief over Janeway's impending death coupled with anxiety brought on by the disappearance of Paris, Kim, and the Doctor forces the crew to take increasingly dangerous actions in order to assure their own survival.

But Voyager doesn't fight alone: behind the lines, powerful forces have allied to give the starship aid. Toward this end, a familiar nemesis -- the cosmic meddler Q -- sends Paris and Kim on a perilous journey. Elsewhere, the Doctor, trapped in a dimension alien to human understanding, reunites with an old friend to help secure the fates of those he's left behind.

Yet the conflict raging in the Monorhan system is merely a surface manifestation of more serious turmoil; the true struggle is rooted in the universe's very foundation. Standing at the eye of this maelstrom is Voyager, whose crew may hold the fate of all.

But where they seek to go is defined by the journeys they have made before, and ghosts populate these uncharted waters -- the spectres of lost leaders, fallen friends, forsaken lovers, vanquished enemies, and earlier selves. Some of these shades drive the travelers on, others are drawn inexorably into their wake; but all make their presence felt, and in feeling, the men and women of DS9 and the Defiant must somehow navigate the perilous rapids of their pasts in order to find the future.

Originally published as Twilight and This Gray Spirit -- the first two novels in the critically acclaimed Mission: Gamma series -- These Haunted Seas is the next chapter of the epic saga begun in Twist of Faith, continuing the chronicles of Star Trek: Deep Space Nine® beyond the small screen, propelling its heroes to realms they could never have imagined, and truths they cannot escape.