In The Repairer of Reputations, we are told that Hildred Castaigne, having read the first act of The King In Yellow, threw the play into the fire, but, catching sight of the opening words of the second act decided to rescue it. We are not told what these words were or their importance to Castaigne, but it seems likely he felt they supported his royal claim in some way. Compare the the last lines of the first act. See also The King In Yellow (Reconstructing The Play).