Blood in the bottle?

[oiboyz]

No: HPFGUIDX 82502

If you leave blood sitting still in a vial for an hour or more, it'll 
settle into layers-- yellowish clear plasma on top, red blood cells 
on the bottom, and a very thin layer of white blood cells in 
between.  It definitely wouldn't be a uniform red liquid, so if 
that's what Harry saw, than he'd probably be wrong to assume it was 
blood.

But then again, if you're a wizard who's planning to leave a vial of 
blood sitting around for a long time, I suppose you'd put some sort 
of anti-corruption spell on it.  Perhaps there's a spell that keeps 
the blood from separating into layers too.  In fact, it seems quite 
likely to me that the blood has some magical function (Divination? 
Dark Magic? Some kind of voodoo?) or comes from a magical creature-- 
why else would you keep it around in an ornate crystal bottle?  And 
if the blood is magical in any way, I wouldn't expect it to act all 
clinical and settle into layers like boring ol' Muggle blood. :)

Wow, what an arcane post I just wrote.  And it was my first one, 
too!  Hello everybody, I just discovered HPforGrownups and I was 
delighted to find it. :)

"oiboyz"