Port Wonder is a massive void station on the uttermost edge of the Drusus Marches Sub-sector of the Calixis Sector, rightly regarded as the last bastion of the rule of the Emperor of Mankind this side of the Koronus Expanse and the last stop before entering that untamed region of the Halo Stars. A place of desperate hopes and vain dreams; Port Wander teems with a transitory population of traders, spies, merchant factors, pilgrims, and missionaries amongst which move Adeptus Administratum functionaries and minions of the Adeptus Mechanicus, all feeding on the riches that flow from the realms beyond the Warp Storms in the Koronus Expanse. All who travel into the Koronus Expanse share one common experience in that they pass Port Wander. Be they the pious bringing the Emperor’s Light into the darkness beyond the Imperium or black-hearted monsters searching for the keys to forbidden dreams, many will stop in the last place where the rule of the Golden Throne keeps the horror and possibility of the unknown at bay.
Port Wander was founded by the Imperial Navy in 917.M40 as a staging ground to investigate the loss of many vessels on the fringes of the Drusus Marches. With the discovery of the Koronus Passage into the Koronus Expanse region of the Halo Stars in the late 40th Millennium, the space station grew in importance owing to its close proximity to the Passage. Its original role as a base for Imperial military operations was slowly forgotten, and Port Wander became a way station for those daring passage into the Koronus Expanse. Merchants and mercenaries began to choke the once — deserted corridors of the station, and strangers shook the dust of distant stars from their boots while trading wondrous things from beyond the Great Warp Storms.