i know it's too soon to talk about it and that just today they gave us the green light but hear me out.
third season, the titan's curse. percy, thalia, zoe and grover are in san francisco. two kids in purple shirts pass by on the side. they look the same age as percy or maybe a little younger or something like that he thinks.
one of them collides with percy "sorry man" "no worry dude" this blonde guy with blue eyes stares at thalia carefully, she does the same. "do i-" someone interrupt her "hey slow, hurry up we have things to do" "oh yeah right, eemm sorry again". the kids run away.
thalia is still stunned. percy thinks she reacted like that because that boy looks a bit like luke, but we know the truth.