JPR™’s answer to “Magnus... Chase. Rick. What are you doing Rick? Are you kidding me?” > Likes and Comments

I second that motion.

Thirded, although I'm 100% certain.

yep, my idea exactly

RICK SAID HE WAS HER COUSIN

and i just read the 3 chapter preview of the book!!! CONFIRMED SIGHTING OF ANNABETH, SPREAD THE WORD!!

mmkay

yes iv read it he is

Also, in the area where Rick answers questions on Goodreads, he said it a million times.

Woohoo yes :)
At this point you probably read the trilogy already though.