[It's not noticeable, but Nico's free hand tightens into a fist. It's released quickly, but...well. A shadow of his pain does haunt him whenever he thinks about it.]

Saved some demigods she went on a quest with. Electrocution or she got...crushed. She'd been in a metal, prototype version of Talos, so either was likely. Her body was never found, but, even though I could talk to her ghost...it wasn't the same.

[He takes a very deep breath and lets it out slowly.]

And then she chose to be reborn, so I'll never see her again in my lifetime.