It’s not The Wind in the Willows, but I just finished this book about Archimedes. It’s fiction, about Archimedes’ young adulthood. In the book he builds catapults, does geometry, and courts a princess. I liked the depiction of a genius trying to fit into society and remain true to the gifts God had given him.
Bradshaw has written some other historical fiction about ancient Rome that I’ll have to look into.