Culverton

Culverton was an English village in East Anglia.

During World War II, two Gaderene embryos were transported to Earth and landed near Culverton to prepare the way for an invasion. However, the matter transmitter that was used became unstable. One of the young Gaderene, Bliss, was stranded, unable to communicate with her home world. She took a human as a host to survive. The other embryo was mutated during the transfer and hibernated in the marsh near the village.