Life: Reloading

After making amends in the afterlife, Dahlia Potter, Snape, and Dumbledore get kicked back to the realm of the living by Death. Only problem is, it's 1991 again. Dumbledore is now a genuinely cheerful old man who's a bit mental, Dahlia's a sneaky little shit who's obviously too cute to be any trouble, and Snape wonders what he did to deserve this. Fem!Harry, time travel, crack (?).