With surprising agility, the Royal Engineer pivoted to dangle his legs off the side of the carriage, then hopped down to the ground, crouching low and reaching under the armored body to close the fuel valve on the Whirlwind's boiler. The hissing noise that always accompanied the carriage started to peter off. Artemis’ VIP stood up again, throwing his arms up on the armored carriage's top deck and rested his head between them, his tired eyes looking at each of his four guardsmares in turn.