Awkward

What if the Boy-Who-Lived died the very moment Who-Shall-Be-Not-Named rested his eyes on him ? What if the The Half-Blood Prince did what The-Boy-Who-Lived was destined to do ? What if Who-shall-not-be-Named got killed BUT before resting in the slumber of death he did something no one expected or witnessed till date ? What will The Half-Blood Prince do ?