"Alas, yes."<br/><br/>Vincent nodded his understanding.<br/><br/>"I have often felt, and thought, that the main problem with the obsession about purity of blood is that the numbers do not bear it out.  There are, what?  Maybe fifty or so families of pure blood in all of Britain.  And the inbreeding is...unavoidable.  But who listens to one such as I?"