The Sand-reckoner (Paperback, New ed)

The young scholar Archimedes has just had the best three years of his life at Ptolemy's Museum at Alexandria. To be able to talk and think all day, every day, sharing ideas and information with the world's greatest minds, is heaven to Archimedes. But heaven must be forsaken when he learns that his father is ailing, and his home city of Syracuse is at war with the Romans.

Reluctant but resigned, Archimedes takes himself home to find a job building catapults as a royal engineer. Though Syracuse is no Alexandria, Archimedes also finds that life at home isn't as boring or confining as he originally thought. He finds fame and loss, love and war, wealth and betrayal-none of which affects him nearly as much as the divine beauty of mathematics.