THIS IS SUPER IMPORTANT!!!!
Rereading some old chapters and I found this:
On page 19 of Spooky Stuff, the vampire was NOT stabbed in the heart. The heart is on the other half of the torso, therefore the vampire should still be alive. Unless, of course, the vampire wanted to outsmart everybody (unsuccessfully) and put his heart on the right half of his torso.
Amazing illustration of his disintegration, though.