Annabeth contacts Percy through an Iris Message. Percy had died after the Giant War. They do a My Immortal duet
Percy: I'm so tired of being here, suppressed by all my childish fears
Annabeth: And if you have to leave, I wish that you would just leave
Annabeth: Your presence still lingers here and it won't leave me alone
P: These wounds won't seem to heal, this pain is just too real
A: There's just too much that time cannot erase
A: When you cried, I'd wipe away all of your tears
P: When you'd scream, I'd fight away all of your fears
A: And I held your hand through all of these years
Both: But you still have all of me
P: You used to captivate me by your resonating light
A: Now, I'm bound by the life you left behind
A: Your face it haunts my once pleasant dreams
P: Your voice it chased away all the sanity in me
A: These wounds won't seem to heal, this pain is just too real
P: There's just too much that time cannot erase
A: When you cried, I'd wipe away all of your tears
P: When you'd scream, I'd fight away all of your fears
A: And I held your hand through all of these years
Both: But you still have all of me
A: I've tried so hard to tell myself that you're gone
A: But though you're still with me, I've been alone all along
A: When you cried, I'd wipe away all of your tears
P: When you'd scream, I'd fight away all of your fears
A: And I held your hand through all of these years
Both: But you still have all of me, me, me
What the two didn't notice was the entire camp watching in wonder at the perfect song for the two.