“Well, some of us can’t turn into dragons, so we have to build our own.” Leo arched his eyebrows at Frank. “Anyway, I revived him as a figurehead. He’s kind of the ship’s main interface now. How are things looking, Festus?”
Festus snorted smoke and made a series of squeaking, whirring sounds. Over the last few months, Leo had learned to interpret this machine language. Other demigods could understand Latin and Greek. Leo could speak Creak and Squeak.
“Ugh,” Leo said. “Could be worse, but the hull is compromised in several places. The port aerial oars have to be fixed before we can go full speed again. We’ll need some repair materials: Celestial bronze, tar, lime—”
“What do you need limes for?”
“Dude, lime. Calcium carbonate, used in cement and a bunch of other—Ah, never mind. The point is, this ship isn’t going far unless we can fix it.”

The Mark of Athena, Chapter V