As it says on the tin.

A chord struck in his heart then, a sharp, unwelcome sensation that he hasn't felt since his first few days working as the Reaper. An emotion that he thought he had long since lost the capability of feeling. Pity. - My attempt at creating some sort of lore to this game.

No matter how they prevail, no matter how they die, no matter who they save, no matter who they kill, no matter how their quest ends, they always return.

Nico and Annabeth fall into Tartarus. It didn't take long for one of them to die.

After 200 years of rest, the Hero of Hyrule finally awakens.