But--"  He was just pulling her close enough again and feeling her arms lift to his neck when the ground shook behind them and there was a sound of great, jarring, thudding steps.
The ground shook because there was a crowd of giants approaching.
mnli hypothesis: The ground shook because there was a crowd of giants approaching. premise: But--"  He was just pulling her close enough again and feeling her arms lift to his neck when the ground shook behind them and there was a sound of great, jarring, thudding steps.