Wallace was for them to do in their situation, he needed no better spy over their actions than his own judgment.
Foiled in every attempt, as their opponent, guessing their intentions, was prepared at every point to meet their different essays, and losing men at every rencounter, their governor stood without resource.
Without provisions, without aid of any kind for his wounded men, and hourly annoyed by the victorious Scots, who continued day and night to throw showers of arrows, and other missile weapons, from the towers and springalls with which they had overtopped the walls, the unhappy Earl of Gloucester seemed ready to rush on death, to avoid the disgrace of surrendering the fortress.

Every soul in the garrison was reduced to similar despair.

Wallace even found means to dam up the spring which had supplied the citadel with water.

The common men, famished with hunger, smarting with wounds, and now perishing with inextinguishable thirst, threw themselves at the feet of their officers, imploring them to represent to their royal governor that if he held out longer, he must defend the place alone, for they could not exist another day under their present sufferings.
The earl indeed repented the rashness with which he had thrown himself unprovisioned into the citadel.

He now saw that expectation was no apology for want of precaution.