`` thank you , '' i said around a yawn as he gave me my change . the siren stopped , silence was his only reply . vampires fight - it 's in our blood . they were lying on a membrane from which they could just make out a slight difference in the distance above them . could people see as he walked along with this girl . that there would n't be , in the future , some kind of meeting of the minds now that he 'd opened himself after all these years . 