(urth) Sev's common lineage

[Dave Tallman]

Andrew says:
> A couple of other things I like about my little Sev-lineage story. 
> First & most obviously, it explains Sev's silence about Catherine: 
> he's just not letting on that he's the product of an incestuous 
> union. We don't have to try to guess whether Cathreine committed 
> some discreditable crime that he's hiding.
>   
And if my theory is correct and Sev is the product of a time-traveler he 
has an even stronger motive for reticence: self-preservation. He doesn't 
want to give his enemies scope for terminator scenarios which attack his 
mother before he can be conceived.