Hrmm, just had an idea...
Say that Harry is to be the heir of Slytherin aswell, everyone seems to be of the opinion that if this does happen, it is because his mother, Lily, is somehow related to Voldemort...
But what if Voldemort this onto Harry when he tried to kill him, just like he passed on the ability to speak in parseltounge. Dumbledore believes that he might ahve passed on other powers too, right, so what if the heir of Slytherin business was one of them???
By the way, I don't actually think that this will happen, just something interesting to think over!!!
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