Audiobook of The Missing Formula

The Missing Formula

by Mildred A. Wirt Benson

A secret formula that could revolutionize the world... but it's about to fall into the wrong hands. Madge Sterling is a young detective with a knack for solving mysteries. When her new friend, Anne Fairaday, comes to her with a plea for help, Madge knows she's on to something big.

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Mildred A. Wirt Benson image

Mildred Augustine Wirt Benson (July 10, 1905 – May 28, 2002) was an American journalist and writer of children's books. She was best known for ghostwriting the first 23 Nancy Drew mystery novels under...

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