He killed you. During the battle with Kronos. Your blood on his hands. You were his best friend since... forever. You, him, Annabeth, and Grover. Until he killed you. All because you were manipulated into joining Kronos. It's been two months since then. Your body was never found. He thought you were in the Underworld. Oh how he hoped you were...

While he was walking through camp, he saw Nico with a ghost. Not unusual. Until he looked closer. You. He almost missed it. The usual energetic you, was now a ghost. Shimmery but still there. How has this happened? He didn't think you would ever come back. But he ignored it, hoping you didn't see him. But you did.

The next morning, he was standing in his cabin. Looking at his reflection in the mirror. When he spotted something behind him. You. In the same ghostyness as yesterday. Is ghostyness a word? It is now. He stares at you through the mirror, neither of you making a sound.