I see... [A small sigh before the voice resumes, and you can hear the sympathetic smile.] That's okay, Rider. Rather, I should be the one to apologize to you, since it must be destabilizing to suddenly arrive here, separated from your Master and being recognized by people you don't ever recall previously speaking to before. But yes, that is the case; you and Matou-san were here before, and I knew you both. To answer your question, Matou-san isn't here anymore. Not even her drone remains; I do pray that she has been returned safely and rightfully to her world, by Emiya-kun's side. That said, my name is Ciel; it's nice to meet you again, even if the circumstances aren't the most favorable.