Founded by the brother and sister team of Raphael and Jacinta Rojas, the Cartagena colony was established two years ago and currently has 19 members. Typical of many Septimus colonies, it is made up of the desperate and the adventurous looking for a better life than the one offered on the marginal worlds of explored space. All members of the colony have some basic training in hydroponics and aquaculture. Raphael Rojas is a physician, while his sister, Jacinta, is a biologist and geneticist. Other prominent members of the colony include Travis Willem, a former member of the UNA Scout Service, Natalie Tanaka, a one-time corporate espionage agent, and ex-mercenary, Roberto Morales.
The Cartagena colony site was chosen because of the presence of an alien artifact which Raphael was curious to investigate. The artifact appears to be a polished white stone obelisk some 50 metres tall and 20 metres across, perfectly hexagonal in cross-section and with a modest bevel along the top edges.
Raphael Rojas is an old friend of Boris Chevsky, famed captain of the freighter Svetlana. Before leaving for Septimus, Rojas invited Chevsky and his wife, Juanita, to join him in the new colony. At the time, Chevsky wasn't interested, but Rojas left the invitation open and gave Chevsky the colony's transponder frequency should he ever change his mind. Two years later, Chevsky is looking for a new life and has decided to take Rojas up on his offer. He bought out his crew and is looking for adventurous young men and women to join him inside the worldsphere.