User blog comment:SonOfZeus1200/The Camp Half-Blood & Kane Chronicles Series will collide!/@comment-207.74.86.35-20120508101552/@comment-5112532-20120530175753

Well I don't remeber Percy mentioning anyone likee Carter or Sadie.. But I think that you're right that RR will probably just give us some small hints and a cross over of someone from the Kane Chronicles looking round the Parthenon or something small and random.