"Missing Formula" is a thrilling mystery novel that follows the young detective Penny Parker as she tries to solve the case of a missing formula that could change the course of history. The story is fast-paced and engaging, with plenty of twists and turns to keep readers guessing until the very end. The characters are well-developed and likeable, and the setting of a small town in the 1930s adds an extra layer of charm to the story. Mildred A. Wirt Benson's writing is crisp and engaging, making this book a must-read for fans of classic mystery novels.

Book Description:
Orphan Anne Fairaday faces a life of poverty upon the death of her father. The only thing that can prevent it is finding his latest experiment. She enlisted her new found friend, Madge Sterling, an outdoors girl who has a knack for finding missing things. But they must race against time as there are also several people who will stop at nothing to get it first.