Fox has signed on Martin Hynes to adapt The Magician's Elephant, the upcoming children's book by Kate DiCamillo.
According to Variety, the story centers on impossible things that may happen when a fortune teller tells an orphan boy that an elephant will lead him to his long-lost sister.
"What attracted me to the project was that Fox wanted to make a fable which could both be a classic but not take itself too seriously," Hynes told Daily Variety. "The film we've referenced in terms of tone is 'The Princess Bride' -- something that kids will enjoy, but adults will love on other levels."
Two of DiCamillo's books -- The Tale of Despereaux and Because of Winn Dixie -- have been adapted into features.
No production date has been set.