midnight
At Camp Brady it was Willie who had learned , better than any other member of the patrol , the lesson of observation . When the patrol was practising scouting , which is only another name for close observing , Willie had sat for hours studying the landscapes , even when his fellows teased him . Thus he had learned to see everything within sight and make note of it . And when a guide was needed later , to conduct a party through the midnight woods in quest of the dynamiters ' lair , Willie was the scout who was able to do it . He had observed perfectly and so carefully noted what he saw that even in the darkness he could find his way . So now he examined his long rows of letters until he knew everything about them ; and he was certain they told no story . When he was certain , he rearranged the letters , as Roy had done , in rows of five each .