Eventually, the cats had all recovered from the fatigue they built up during their continued fighting on the battlefield. Since Toz was busy with the grimoire, he didn't notice it at first, but the cats were quickly growing restless. But because of the changed atmosphere in the base camp and the impending deadline for the execution of the general's plan, they didn't want to leave the camp and Toz.
But the cats didn't really try to hide their boredom, and Toz noticed before long. So, because he understood their feelings, Toz agreed to at least leave the tent with them and take a walk around the camp.
It would allow them to stretch their legs, but they could also take the opportunity to try and eavesdrop and find the reason why everyone in the camp had become so diligent.