Brother's Keeper (Sovereign)

Brother's Keeper is the second Episode to the Star Trek: Sovereign Book series.

Summary
While investigating a Nebula along the Cardassian Border the crew of the USS Sovereign and her crew encounter the USS Saladin a single Nacelle Destroyer from the 23rd Century under the Command of Captain Ray Martin, and when the Cardassians get word of this they want to capture the 23rd century ship and study its systems can the crew of the Sovereign protect the Saladin and her crew.