Gryben

Gryben was a planet on which Robert Knox bought a TARDIS from a Nekkistani. (BFA: Medicinal Purposes)

Gryben was a temporal enclave where all unauthorised time capsules travelling within the time vortex were diverted to, in order to be catalogue and questioned into why there were in the vortex. According to Coordinator Narvin a lot of the cases were due to aliens, either saying they were political prisoners, or that their planet was on the point of collapsing.

The inhabitants group themselves to which species they are. In the human outpost, Nepenthe, a free time agent lived. (BFG: Weapon Of Choice)