With the Rover securely docked on the underside of the giant airship, Rocket released the cockpit hatch and leaped aboard. The bone ship’s structure was a complex skeleton of gas-filled chambers and stretched rubber that creaked and hissed creepily. The captain sniffed the air for any animal scent he could identify, but the smell of the gas in his nostrils overpowered his senses. ‘Grrr,’ he growled, and set off on foot. The bone-white interior was a maze of damp, chilly corridors adding to the bleakness of the place. Rocket didn’t want to stay any longer than he had to, so he raced through the ship at speed, paws bouncing on the spongy rubber floor. Eventually he came upon a vast circular door and skidded to a halt. Peering through a round portal, Rocket could see a colossal white hall within. It had curved walls and a wide walkway leading to the distant cockpit, but there was no sign of any dogs.