Hi, Aspen!  I'm glad you were able to sign in and glad that you're enjoying SC!  As I said, I really feel honoured that you do because the AYLNO saga is just such a landmark fic and I love it so much.

Okay, this may be a little farfetched or there may be loopholes I haven't thought of, but this is what I'm thinking as far as Draco knowing the slavery spell.  He does know the actual words he spoke, but since the spell was written in an archaic form of Latin, he doesn't know what it did.  Yes, he could try to find some texts on old languages and translate it on his own, as DD did, but for one thing, he really hasn't gotten that curious about it yet.  Dumbledore implied that Harry was perfectly fine, that he'd made a full recovery, and the whole reason Dumbledore did that was to attempt to allay Draco's suspicions.  Draco said that the other spells he'd used from that book were relatively harmless, or rather, that they could be easily reversed, so he doesn't really suspect that there have been any lasting or permanent consequences for Harry.  He thinks that Dumbledore was angry just on principle, because it is illegal, immoral, and potentially dangerous to cast an unknown spell.

For another thing, Draco has had some other things going on this summer that have kept him occupied and have had an effect on him. 

So...no, it's not impossible that anyone else could ever find out about the spell, but Severus just meant that he didn't believe that Harry's making a statement to the public would lead to its discovery.

Lol, no I'm not planning to kill Draco off...that would ruin all the fun, wouldn't it?

Thanks again!