A contradiction to consider

[Cathy Drolet]

No: HPFGUIDX 135180

Abigailere said: 
>So, how come Draco, and more importantly Snape, fled off-grounds to 
apparate away from the school?  Wasn't it Dumbledore's spells which 
protected the school from apparations and disapparations?  


CathyD Now:

IMO, I think some of these charms, enchantments, spells, were set in place when the founders built Hogwarts.  They were built in to the protection system.  It's unplottable, you can't apparate in or out, you can't get in by stealth, etc.  

I think, probably, each different Headmaster has added his/her own spells, echantments, etc, protecting the school as he saw fit during his time as Headmaster.  Including Dumbledore.  During HBP we know DD put even more specialized enchantments in place (the chian-locked gates).  I'm sure some of Dumbledore's spells and enchantments may have stopped when he died, but of course, McGonagall would have put them back in place.  Or, the very real thing we don't know is that if some charms may outlive the Wizard/Witch.

Apart from this it would be force of habit, wouldn't it?  Everybody knows you can't apparate out of Hogwarts, they were in a rather pressing situation and didn't have time to think..."Oh yeah, DD's dead, we can apparate right from here."

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