But Bordentown was her last school. When she had been there for two years and perfected the public-school system, her voice gave out as a result of constant use, and she went to Washington for a rest. But it did not take her long to recuperate, and soon she was eagerly looking out for some new avenue of opportunity to take the place of teaching. Government work interested her, and she heard rumors of scandals in the Patent Office, where some dishonest clerks had been copying and selling the ideas of inventors who had filed patents. This roused her anger, for she felt the inventors were defrauded and undefended individuals who needed a protector. As her brother's bookkeeper, she had developed a clear, copper-plate handwriting, which would aid her in trying to get the position she determined to try for. Through a relative in Congress she secured a position in the Patent Office, and when it was proved that she was acceptable there, although she was the first woman ever appointed independently to a clerkship in the department, she was given charge of a confidential desk, where she had the care of such papers as had not been carefully enough guarded before. Her salary of $1,400 a year was as much as was received by the men in the department, which created much jealousy, and she had many sneers and snubs and much disagreeable treatment from the other clerks; but she went serenely on her way, doing her duty and enjoying the new line of work with its chances for observation of the government and its working. War clouds were now beginning to gather over both North and South, and signs of an approaching conflict were ominously clear in Washington, where slavery sentiments swayed all departments. Clara Barton saw with keen mental vision all the signs of the times, and there was much to worry her, for from the first she was clearly and uncompromisingly on the unpopular side of the disturbing question, and believed with Charles Sumner that "Freedom is national; slavery is sectional." She believed in the Union and she believed in the freedom of the individual. So eager was she to help the government in the coming national crisis that she offered her services as a clerk, to do the work of two dishonest men; for this work she was to receive the salary of one clerk, and pay back into the Treasury that of the other, in order to save all the money possible for an emergency. No deed gives a clearer insight into the character of Clara Barton than that. As it was in the case of the school in Bordentown, so was it now. If public service was the question, she had no thought of self or of money--the point was to achieve the desired end. And now she was nearer the goal of her own personal service to the world than she dreamed.