The Badlands novels 2

Captain Kirk braves the perils of the Badlands to confront a Romulan Bird of Prey that has entered Federation space in pursuit of a fleeing smuggler. A generation later, Picard faces the same phantom menace when he commands his Enterprise into the Badlands on a mission vital to Federation-Cardassian relations.

In the Badlands, Voyager encountered the same threatening phenomena that had previously endangered both Kirk and Picard. Now, detoured from her mission by an urgent Cardassian distress call, Janeway finally uncovers the origin of the hidden menace! Sisko must deal with the exposed threat once and for all.