Oh God, Not Again! By Sarah1281

Adult Harry Potter accidentally goes back in time and wakes up on his 11th birthday again, but with all his memories of the future intact.

Odyssey of Shadows

"Hope, children, and never once let in. For it is written that a single candle can withstand the darkness, even now, in our most desperate hour." "Though the end days have come at last, and the sun falls for the last time beyond the dim horizon, we must still have hope, being that the unlikeliest of heroes and the gre...