by Athena Appleton » Monday 26 April 2004 10:10:37pm
I would imagine that once Dumbledore realized who Tom Riddle was, and that he was becoming or had become Voldemort, he would have looked into the matter of possible relatives, possible brothers and sisters, are his parents really dead, etc. Dumbledore tells Harry with complete confidence that Riddle was the last heir of Slytherin. Being Headmaster of the school, I'd imagine he'd want to make sure that Chamber would NEVER be opened again, and one way to do that would be to make sure there were really no more heirs out there...