: The Valley of Lies
Ali Standish
Oct 8, 2025
Hardcover
Juvenile Fiction / Mysteries & Detective Stories
Ages 8 to 12, Grades 3 to 7
The final installment of this fantastic mystery series from award-winning author Ali Standish and the Conan Doyle Estate, set in a secret school for extraordinarily gifted children. It’s The Mysterious Benedict Society meets The Adventures of Sherlock Holmes. Currently in development for TV with Ron Howard at Imagine Entertainment and sold into 20 foreign territories and counting!
In Book 3, Arthur must do the unthinkable: betray his friends and Holmes or pay the price.
