Mallow, among other things, offers the Commdor tools for heavy industry, believing that will allow him to visit a factory, where the advanced technology would be found if Korell has it. He sees no signs of it, but does manage to catch a glimpse of the ruler's guards' weapons - atomic handguns bearing the markings of the Galactic Empire, which the Foundation assumes has fallen by this time. Mallow's discoveries lead him to believe that the Empire may be attempting to expand into the Periphery again, and has been providing weapons to client states such as Korell. Leaving the Republic and his ship, he journeys alone to the planet Siwenna, which he believes may be the capital of an Imperial province. He finds Siwenna a desolate and sad place, and meets the now-impoverished former patrician Onum Barr in the latter's isolated mansion, which is slowly crumbling. Barr, a former provincial senator and a leading citizen, had served in the Imperial government on Siwenna during a fairly stable time several decades earlier, before a series of corrupt and ambitious viceroys who each harbored dreams of becoming Emperor. After the previous viceroy rebelled against the Emperor, Barr participated in a revolution that overthrew the viceroy. However, the Imperial fleet also sent to remove the viceroy wanted to conquer a rebellious province even if it was no longer in rebellion, and began a massacre that claimed the lives of all but one of Barr's children. The new viceroy also plans a rebellion, but keeps a backup plan; fleeing into the Periphery and carving out a sizable realm there. He had secured a political alliance with Korell by marrying his daughter to Asper.