Hm.

So, as we approach the end of the fic, there's one question left that looks really hard.

Let's try to solve it!

...but in all seriousness: I expect Harry to solve Death before the end of the fic - it's too central to both Harry's current motive and thus the current plot arc, and Eliezer's motives in writing this fic, to avoid, even putting aside the conspicuous Peverell prophecy.

There is not enough time left for Harry to do this by learning some secret art or by putting his own spin on an existing spell. Therefore, this problem should be soluble with what Harry has on hand.

For now, I will treat Quirrelmort and Dumbledore (come on, you don't honestly think he's going to be absent for the big climactic duel of words and ideals, do you?) as resources - never mind how Harry convinces them for now.

• Between Dumbledore and Quirrel, essentially any existing spell. This is known to be insufficient for the task.
• Dumbledore has the Elder Wand. Harry has the Invisibility Cloak. Quirrel is highly implied to have the Stone of Resurrection. All three Hallows are gathered, and Harry seems to have activated something in that prophecy stone.
• The Patronus 2.0.
• The Killing Curse 2.0. Harry is never going to hate someone enough to want them dead, but I could imagine him being sufficiently angry with Quirrel to consciously put him outside of his monkeysphere - aka, not care/be indifferent to his death.
• Partial Transfiguration
• The secret to creating new potions.
  • The secret to creating new spells could probably be taught to him in the remaining time, too.
• Hermione's corpse (probably.)
• The Philosopher's Stone, which appears to be some sort of conceptual anti-Death tool already. (Gold being the least reactive metal and thus the longest-lived in its original state, though that begs the question "why not xenon." Maybe because xenon is a gas and thus will mix/lose its form?)
• A Time Turner. Harry can only go back one or two more hours today, but he can send information back another six as long as he figures out the plan now.
• Minions. Lesath Lestrange in particular.
• A large, probably ordinary rock.

Am I missing any resources?