The garrison commander turns around and looks at the horse messenger that was heading towards him. He also heard that the messenger is shouting to stop repeatedly, And when the horseman hops down on his horse. He quickly runs towards the garrison commander, then handling a message that has an indication of a stamp of the Duke.
the garrison commander then tore the letter to open it. And as he reads the letter it states there that an Imperial convoy of Knights led by a Knight of a rank in the Elite Knights of the Emperor is heading to the fortress and the garrison commander needs to prepare and rather handle the matter at the later date.