London

Tom ran forward, and was plunged into sudden darkness as the searchlight snapped off. Rockets from higher batteries came sparkling down to burst against the Elevator’s thick hide. One shattered some glass in the gondola, but the black airship was already powering away from the Wall. The backwash from its propellers slammed into Tom’s face as he knelt over Anna Fang, shaking her in the dim hope that she might wake.

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He heaved as hard as he could on the firing controls, and felt the deck shift under him as the
rockets went shrieking out of their nests beneath the gondola. Dazzling light blossomed as they hit their target, but when he blinked the bright after-images away and peered out the black airship was still there, and he realized that he had barely dented the great armoured envelope, and that he was going to die.

Chapter 34, An Idea for Fireworks Display, Mortal Engines, pg 141/152