There were more details in a second message below the one Aster had read, first and formal the message said that during battle the camps that had no available members will be protected from external interference.
Not like that altered Aster's plans, because even if they left this early towards James's original camp, they would arrive past midnight and that is if they were to rush with the help of the horses who would be too tired to participate in the battle.
The idea was to set off today, travel at normal speed and camp until early in the morning of tomorrow, to then attack the camp while there were only some of them in watch duty and then be back home at night.
