four o'clock
Well , every day at four o'clock Ozma has promised to look at me in that picture , and if I am in need of help I am to make her a certain sign and she will put on the Nome King 's Magic Belt and wish me to be with her in Oz . '' `` Do you mean that Princess Ozma will see this cave in her enchanted picture , and see all of us here , and what we are doing ? '' demanded Zeb . `` Of course ; when it is four o'clock , '' she replied , with a laugh at his startled expression . `` And when you make a sign she will bring you to her in the Land of Oz ? '' continued the boy . `` That 's it , exactly ; by means of the Magic Belt . ''