A timeshadow represented an individual's counterpart existing within a separate, parallel timeline.
These timeshadows coexisted concurrently with their original counterparts throughout the galaxy, mirroring them perfectly. Upon the death of the original individual, their physical form would dematerialize, with the timeshadow taking its place, thus enabling a circumvention of death. This process, however, was a one-time occurrence; a second demise would result in permanent death.
The temporal distortions caused by the Darkstaff that led to the ten years absence of the Cularin system from the galaxy, resulted in some inhabitants of the planet Cularin developing their own timeshadows as a result of the disrupted timestream. The disappeared Gust Toruna, a criminal, was replaced by his timeshadow after being fatally shot by an enforcer of the crime lord Riboga.