Nico has vanished, presumably dead, for better or for worse. Voldemort takes triumph in killing another, while Harry struggles with the immense guilt. Meanwhile, Will has disappeared in search and no demigod can find him. Credit for cover art goes to @CamsterHale
When Hera erases Nico's memory and sends him to protect Harry Potter, Nico has more than his fair share. It's Harry's fourth year, so when the Goblet of Fire chooses it's champions, who does it pick? That's right...Nico. Credit for cover art goes to @CamsterHale