When Annabeth woke up and Percy wasn't next to her, she didn't panic.

The only one panicking was Nico, waking up on the beach alone. While Annabeth was lazily getting up, going through her morning routine and assuming her boyfriend was just "elsewhere", Nico was scrabbling through the sand, feeling the grains dig into his nails, finding Percy's clothes but not the boy himself.

He was standing up, still clutching Percy's orange t-shirt in his hands, looking around. Looking to the sea.

He was running down to the shore, leaving footprints in the wet sand, splashing into the ocean, screaming at the top of his lungs, wincing as the cold salt water slapped through his jean-clad legs.

He was realizing that Percy was gone.