noon
Chester nodded . `` Then we shall stay here until you return , '' he said . `` Very well , '' Hal agreed . `` But if I have not returned by noon , you will know something has happened , and you will proceed about the work with no further thought of me . '' He left the room quickly . He made inquiries at the hotel office , and half an hour later found himself before the residence of the German undersecretary of foreign affairs . He rang the doorbell .