Let's say Katherine finds a way to stop dying and finds a way to stop aging and dying and she mets another of Silas' doppelgangers,they start a relationship and have a child.What would happen?
I would assume both lines will continue in one family. A version of
Silas and Amara within the same family. Since dopplegangers occur every 500 years, it is doubtful brother sister dopplegangers would occur.
What do you think?