Jefok
The Jefok are a non-human species from the Epsilon Indi star system in the constellation Indus, slightly smaller than average humans with a distinctively complex bone structure in their face that makes them appear to wear a mask — though it is their natural physiognomy. Members of the Galactic Federation of Worlds, they are known for their skills in diplomacy and engineering.
Diplomacy and Earth contact
Peaceful and known for skills in both diplomacy and engineering, the Jefok have been visiting Earth since approximately 3,500 years ago, always in peace and motivated by curiosity and a desire to help humans avoid critical mistakes in their future development. They met with various world leaders, including US President John F. Kennedy in particular, and in 1965 delivered a warning message to all governments with nuclear capabilities. Epsilon Indi is approximately 11.8 light-years from Earth, making the Jefok among the nearest-neighbor peoples in the galactic contact record.
Their engagement with Terran governments during the early nuclear age is consistent with the broader pattern of Galactic Federation of Worlds outreach documented during this period, in which multiple species — including the Egaroth and the Ummit — sought to warn humanity against nuclear escalation. Unlike many Federation member species that prefer orbital observation, the Jefok committed to direct diplomatic contact with heads of state.
Proximity to Terra
At approximately 11.8 light-years distance, Epsilon Indi places the Jefok among the nearest planetary neighbors to Terra documented in the galactic contact record — in the same distance bracket as Procyon (11.4 ly, home to the Artaalu and Eldari) and much closer than the Pleiades or Sirius. This proximity may in part explain the Jefok's sustained multi-millennial interest in Terran development: a close-neighbor relationship maintained across roughly 3,500 years of observed contact, culminating in a direct government-to-government warning at the moment of humanity's peak nuclear weapons proliferation in 1965. The specific targeting of governments with nuclear capabilities — rather than a general broadcast — implies the Jefok had sufficient intelligence about Terran political and military structures to deliver targeted diplomatic communications to relevant decision-makers.