#16 - Time's Enemy (Invasion Book #3)

When a battered and broken version of the Defiant is found among an icy cloud of cometary debris, Captain Sisko and the crew of Deep Space Nine are summoned to answer the baffling question--how and when will their ship be catapulted back through time to its destruction?

#17 - The Heart of the Warrior

While a crucial peace conference fills Deep Space Nine with rumors of intrigue and conspiracy, Major Kira and Lt. Commander Worf embark on a dangerous mission deep in the heart of the Gamma Quadrant. Their mission is to find the secret of the addictive substance that the Changelings use to control their Jem'Hadar warriors.

#18 - Saratoga

En route to a ceremony for the new U.S.S. Saratoga, Captain Sisko and his reunited crew are sucked into a destructive energy wave that leaves them with hours left to live.

#19 - The Tempest

When a ferocious plasma storm strikes the entire Bajoran system, Deep Space Nine becomes a port under siege, filled to overflowing with stranded space travelers, unpredictable aliens, and Klingon smugglers. Wof and Odo find themselves tested to the limit as they struggle to control the chaos that has consumed the station. But even greater danger faces Dax and botanist Keiko O' Brian when they must fly a runabout into the very heart of the storm - and encounter a stange new form of life!

#20 - Wrath of the Prophets

When a fatal disease spreads over Bajor, threatening the entire planet with extinction, Captain Sisko must accept aid from an unexpected source: Ro Laren, Starfleet officer turned Maquis renegade. Major Kira and Ro reluctantly join forces to track the alien plague to its source -- even as the disease claims new victims on Deep Space Nine itself. Dr. Bashir struggles to find a cure, but the secret of the virulent invader may hide deep in the shadows of Dax's past.

#21 - Trial by Error

After Quark brokers a too-good-to-be-true trade for gold-pressed latinum, Deep Space Nine is under fire from at least three different alien races, each accusing the others of theft, piracy, and worse. Then angry Klingons get involved, and so do the Ferengi--placing the entire station in the middle of a shooting war that might consume all of them.

#22 - Vengance

Rumors of a secret alliance between the Dominion and the Klingon Empire lure Captain Sisko and the crew of the Defiant on a desperate mission into the Gamma Quadrant, leaving Deep Space None vulnerable to a surprise sneak attack! Now an elite Klingon task force has seized control of the station, and only Chief O'Brien, Dr. Bashir, and Worf are left to defend Deep Space Nine. But Worf's loyalties are tested when he discovers that the invaders include his oldest friend -- and his own brother!

#23 - The 34th Rule

For once, business is going well for Quark, not that anyone truly appreciates his genius for finding profit in the most unlikely of circumstances. Quark is even looking forward to making the deal of a lifetime--when he suddenly finds himself stuck right in the middle of a major dispute between Bajor and the Ferengi Alliance.