Catholic-schooled seventh-graders Sophie, Margaret, Rebecca, and Leigh Ann help an elderly neighbor solve a puzzle her father left for her estranged daughter twenty years ago.
Seventh-graders Sophie, Margaret, Rebecca, and Leigh Ann follow a trail of cryptic clues to locate a rare violin, catch the person sneaking into St. Veronica's School for late-night cleaning and redecorating, and outsmart a conniving classmate.
Sophie and her friends, who call themselves The Red Blazer Girls, embark on solving a case involving mistaken identities, switched paintings, and some priceless family heirlooms.
When Sophie finds a secret message in the antique fountain pen she bought for her father, she and her friends become involved in a treasure hunt devised by the pen's previous owner, whose house is full of puzzles that protect a hidden treasure.
