Horvic served as an operative for Imperial Intelligence, functioning within the "Vengeance" cell during the tumultuous era of the Caamas Document situation in 19 ABY.
Serving under the command of Drend Navett, he took part in a terrorist campaign directed against the Bothan population. This involved acts of sabotage and the instigation of civil unrest, all designed to amplify the existing strains within the framework of the New Republic.
During what would be his last assignment, he, along with the other members of Navett's cell, were dispatched to Bothawui with the objective of sabotaging the planetary shield generators located in Drev'starn, the planet's capital city. As Navett and Klif established a front by opening a pet shop, Pensin and Horvic secured employment at a Ho'Din eatery. This provided them covert access to a power line situated close to the generators, which Navett intended to exploit by sending baby mawkrens equipped with explosives into the generator facilities.
While Navett oversaw this aspect of the scheme, he joined Horvic and Klif on a mission to board the Ishori cruiser known as the Predominance, disguising themselves as maintenance personnel. After Navett successfully deactivated the planetary shields, the three agents eliminated their Ishori guards, commandeered a weapons battery, and initiated an artillery assault on Drev'starn, thereby triggering the battle at Bothawui. They discharged eight rounds upon the vulnerable city before they were subdued.