(Sorry if this isnt accurate. I havent read TSATS in a bit so i dont remember what happened exactly.) You and Will are in the Underworld. The only reason you're here is to go into Tartarus and save Bob. You've been down there before. And you hated it. You already see how the darkness is affecting the son of Apollo. You don't think he'll be able to handle down in Tartarus. But he keeps staying by your side. Your hand in his as you both get closer to the way into Tartarus.

You've reached it. An entry way into Tartarus. You squeeze Wills hand tightly, making sure he's still there. Will: "Together." He walks closer to the edge, the grip he has on you forcing you to stumble into a walk besides him. You're at the edge now. Will: "Nico?" You: "Yeah, Solace?" Will: "I love you." And then he jumps down into the hole, pulling you down with him.