Prince Caspian

 But almost before the Old Narnians were really warmed to their work they found the enemy giving way. Tough-looking warriors turned white, gazed in terror not on the Old Narnians but on something behind them, and then flung down their weapons, shrieking, “The Wood! The Wood! The end of the world!” But soon neither their cries nor the sound of weapons could be heard any more, for both were drowned in the ocean-like roar of the Awakened Trees as they plunged through the ranks of Peter’s army, and then on, in pursuit of the Telmarines. Have you ever stood at the edge of a great wood on a high ridge when a wild southwester broke over it in full fury on an autumn evening? Imagine that sound. And then imagine that the wood, instead of being fixed to one place, was rushing at you; and was no longer trees but huge people, yet still like trees because their long arms waved like branches and their heads tossed and leaves fell round them in showers. It was like that for the Telmarines. It was a little alarming even for the Narnians. In a few minutes all Miraz’s followers were running down to the Great River in the hope of crossing the bridge to the town of Beruna and there defending themselves behind ramparts and closed gates.