The Secret of the Old Clock by Carolyn Keene
Nancy's first mystery begins when she rescues a young girl who fell into a river. From there, she finds about several families promised to be mentioned in an old man's will, but completely left out by the time he died. Nancy goes above and beyond to search for a rumored second will--one that would provide for those families in much need.
Nancy Drew books are always fun. Nancy gets herself in and out of so much trouble, but it is always for a good cause. Despite their age, the Nancy Drew books are a timeless series for young adult readers. The Secret of the Old Clock is the perfect book to dive into a good mystery!