The Badlands - Susan Wright

Before she and her crew were catapulted into the distant Delta Quadrant, Captain Kathryn Janeway and the USS Voyager had entered the Badlands in pursuit of a renegade Maquis ship. There she encountered the same inexplicable phenomena that had previously threatened both Kirk and Picard. Detoured from her mission by an urgent Cardassian distress call, Janeway finally uncovers the mysterious origin of the hidden menace.
Armed with Janeway's hard-won knowledge, Captain Benjamin Sisko must deal with the exposed threat once and for all. But first the USS Defiant must battle both the Dominion and the Romulan Empire for control of an unleashed power source that could devastate the entire Alpha Quadrant!