Describe the change in Madam Lockton since the British ships have entered the harbor. How does the change affect Isabel?

After the British ships invade the harbors, Madam Lockton becomes certain that the British will prevail. As a result, she orders the silver polished, she invites friends over, and she acts as if nothing has changed. In Chapter Twenty, she sends a plate of cookies and milk to Isabel, a treat that Isabel quickly eats before falling asleep. For that, Isabel says, she will never forgive herself.