Tonnabruggias

 Tonnabruggias is the seat of the Imperium's might in The Scallop Stars, a system that lies in comparative safety from the nebulae and errant asteroids of the region. Nevertheless, the system lies in one of the few stable spacelanes allowing ingress and egress from the Scallop Stars, and ambitious ork Warlords often send their forces against the planets.

• Duddleigh's World is the capital world of the system, a strong Fortress World. By ancient decree, it enjoys the patronage of the Novamarine Chapter. Two Companies, under the auspices of Chapter Master Teublitz, are currently in action against an insurgent force of Orks in the subsector, headed by the notorious thugs Warboss Big'ed and Warboss Nuzzgrond. 
• Operanhus, a bustling civilised satellite of Duddleigh's World, is the local naval port; and is under the protection of the Scallop Subfleet.
• Boneash is an Imperial listening station. Devastated by ork invasions a thousand years ago, prospectors and fortune seekers pick over the remnants of the cities.
• Throne is a world at war. The orks have crashed across this Ecclesiarchy world and devastated large areas, seeking to undermine Imperial faith – hoping this will cause the subsector to crumble. Nevertheless, the PDF have largely held the world, and the Novamarines have launched staunch counter-attacks across the Sino-habs, pushing the Ork advance back and reclaiming Marrianna City. The advance has largely stalled, though weekly battles erupt from the interminable sorties.