Richard Castle:  When Alexis was _ four _ , we went Christmas shopping at some mall in White Plains . I was trying on some ... charcoal fedora . I turn around , she is gone . Vanished . I looked everywhere . So did mall security , so did the police . We searched for an hour . You do n't have to be a novelist to think of all the worst - case scenarios .
Kate Beckett: Where 'd you find her ?
Richard Castle: Behind a rack of winter coats . She got bored . She crawled underneath there and went to sleep .
Richard Castle: To
Richard Castle: this day , I still dream about that .