about noon
Untying and opening it , Frank found the inner surface covered with writing , evidently traced in berry-juice with a quill or a stick . It read as follows : `` Captured by the Navajos . Am herding ponies north of Twin Buttes , at the head of Carizo . Come to butte with cavalry , and wave handkerchief from left peak about noon . If I do not come , look for me in plain north of butte . Do n't worry ; I 'm all right . `` HENRY . ''