Albus is bastard. It's that simple. He fiddle-farts around with "the ring" and gets himself cursed, and then decides Severus must kill him instead of the curse... selfish bastard.

Poor Mimi and Severus. They have only three more hours to be together before she will die. Or maybe they will decided for her to go back to her time. But I don't see that happening.

Could Severus possibly come up with a way to kill the Dark Lord in such a short time, then kill Dumbledore, and then go back with Mimi to her time? Would that even work? Geez, I'm grasping at straws here. Hopefully there are some straws around that can work like magic wands. Hopefully.