Looking For Post-TLT AU

From what I faintly remember, the fanfiction I’m looking for was fanfiction.net. It had roughly 5 or so chapters, and the plot basically started off with either Percy sacrificing himself for Annabeth and Grover and falling into Tartarus, or he was dragged down into Tartarus by Luke's cursed shoes. In the future of the timeline, Percy then returns to the overworld, where time has passed a couple of years. From there, he wanders down a NYC street and meets Nico, who’s passing down the other end of the street, and I think Nico recognized him from stories told by the camp how a 12-year-old Percy Jackson was missing and presumed dead. I also partly remember Nico possibly knows Annabeth. After that however, my memory goes foggy.