[quote=@Etcetera]
<Snipped quote by Intrepid>

And what must we do to intrude?
[/quote]

I possess this key, his blood, and another of the keys, which is his voice. The other two keys need to be acquired, being a sample of his own magic, and a sample of his own power, both of which exist here and just need to be... Cultivated, for lack of a better term.