nine o'clock
`` Yes , sir , '' Hal and Noll answered , presenting their orders . `` Corporal , when mess call sounds send a private of the guard with these men to put them in D Company 's mess for their first meal . '' `` Very good , sir . '' `` Overton and Terry , you will report at the adjutant 's office promptly at nine o'clock . '' `` Very good , sir . '' The officer remained to glance over the guard report , then went away . `` When does that mess call sound , Corporal ? ''