Lily's Protection

[danajsparks.livejournal.com]

When Lily Potter died, the magic of her sacrifice gave her son protection against Lord Voldemort. When Voldemort tried to kill Harry with an Avada Kedavra, a spell for which there is no known magical shield, Lily's protection caused the spell to rebound and hit Voldemort instead. More than ten years later, when Prof. Quirrell, possessed by Voldemort, tried to touch Harry, Lily's protection caused his skin to burn. Clearly, then, Lily's protection was both powerful and enduring.

I have a couple questions, though, about Lily's protection....

1. If Lily's protection made it impossible for Quirrellmort to even touch Harry, then why didn't it prevent a fragment of Voldemort's soul from latching onto Harry?

2. Likewise, why didn't Lily's protection appear to have any effect upon the diary horcrux, even though Harry touched it and entered its pensieved memories?

Comments

[terri-testing.livejournal.com]

But actually, think what happened when Ginny tried to destroy the Diary. She tried to drown it (which would both kill a human and cause a normal book to disintegrate into pulp)--no effect. Kreacher tried "everything, everything he knew" to destroy the Locket, "but nothing, nothing would work"--and House Elf magic can do things human magic can't....

A properly-protected Horcrux ia almost invulnerable--only agents of destruction that are impossible (or almost impossible) to counter can touch them, if the Horcrux-maker has done the job right.

So this just means that Lily's sacrificial magic doesn't cause instantaneous, incurable lethal damage to Tom (or Tom-fragment) at the slightest physical touch to Harry. Pain, yes, instantly. Damage, probably. Lethal and incurable damage at the slightest touch? That's not what Quirrell's death looked like--he didn't go up like a torch or start disintegrating, flaking away, from the moment he lay hands on Harry. Rather, he suffered pain and injury, enough to make him reluctant to repeat the experiment. But I had no expectation that if they'd been separated after that first contact, Quirrell would have (quite quickly) died of those burns.

And anything less than that, a properly constructed and protected Horcrux is supposed to be able to ignore.

[danajsparks.livejournal.com]

So this just means that Lily's sacrificial magic doesn't cause instantaneous, incurable lethal damage to Tom (or Tom-fragment) at the slightest physical touch to Harry. Pain, yes, instantly. Damage, probably. Lethal and incurable damage at the slightest touch? That's not what Quirrell's death looked like

OK, that does make some sense, at least in regards to the diary.

[danajsparks.livejournal.com]

I'm still stuck on why Lily's sacrifice didn't protect Harry himself from becoming a horcrux, though.

[sunnyskywalker]

Maybe because the soul-shard itself doesn't have evil intent toward him (it doesn't seem aware like Tom's magical object Horcruxes, anyway - maybe because he didn't have time to set things up properly) and doesn't seem to cause any harm directly? When Tom Prime is around and using the Horcrux in Harry's head, it's dangerous, but otherwise it seems more like a benign tumor or something. Except that it gives him at least one extra power (Parselmouth), and for all we know strengthens Harry's magic in other ways, so Lily's protection might register it as additional protection rather than a threat so long as it just sits there.

[terri-testing.livejournal.com]

God, I want to get Harry under some proper diagnostic charms!

Preferably administered by an un-Befuddled Snape.