User blog comment:Awesomeness34/Thoughts on Son Of Neptune and The Lost Hero/@comment-70.45.9.8-20111211155208/@comment-3146930-20111211160250

And by double layer, I mean the layer of memories that were fake and Piper is depressed about, but the second layer according to you would be a layer of mist that made them think the real memories of Jason and Piper were fake which seems weird. Also, Percy was only gone 6 months