After her husband's death, what does Helen Robinson begin doing for work?

After Tom is killed "trying to escape," his wife, Helen Robinson, is hired by Link Deas as his cook. Link had been Tom's employer for eight years; as Tom was 25 at the time of his arrest for the "rape" of Mayella Ewell, he had been working for Link since he was 17 years old. Link is a good person. He speaks out at Tom's trial in Tom's defense, saying he had never had a bit of trouble with Tom. Link almost causes a mistrial by doing so, as he was not on the stand. At first, we do not know exactly what Helen's new job is, but Link notices Helen is walking to work from the opposite direction that she should be. He investigates, and finds that Bob Ewell has been harassing Helen as she walks to work. She has been forced to either put up with Ewell, or walk a great distance out of her way. Link tells Bob in no uncertain terms to leave his cook alone or he, Bob, will be sorry.