For the information of those readers who have not followed Betty Wales through the first three years of her college career, as described in "Betty Wales, Freshman," "Betty Wales, Sophomore," and "Betty Wales, Junior," it should be explained that most of Betty's little circle began to be friends in their freshman year, when they lived off the campus at Mrs. Chapin's, and Mary Brooks, the only sophomore in the house, ruled them with an autocratic hand. Betty found Helen Adams a comical and sometimes a trying roommate. Rachel Morrison and Katherine Kittredge were also at Mrs. Chapin's, and Roberta Lewis, who adored Mary Brooks and was desperately afraid of every one else in the house, though Betty Wales guessed that shyness was at the bottom of Roberta's haughty manner. Eleanor Watson was the most prominent member of the group that year and part of the next. Betty admired her greatly but found her a very difficult person to win as a friend, though in the end she proved worthy of all the trouble she had cost.