Isabella felt the PDA vibrating in her pocket.  She took it out and read the message.  Smiling, she told Roscoe she would see him later, then went to find her father.  He was not far, speaking with one of the lab assistants at the other end of the room.  She laid her hand lightly on his arm to get his attention.  "Father, the Ambassador is here.  Your secretary thinks I should meet him.  Shall we go to your office now?