The details from paragraphs 7 and 8 support the inference that Lucky became more and more afraid during the storm because Sadie stood still and comforted Lucky, indicating that he needed reassurance and support. Sadie also continued forward, picking up the pace because she wasn't sure how long Lucky could keep his cool, suggesting that Lucky's fear was escalating. Additionally, when Sadie looked back to ensure Lucky was okay, she noticed that his eyes were wide and his nostrils flared, indicating signs of fear, but he still looked at Sadie as if he trusted her, suggesting that his fear was growing but he relied on Sadie for comfort and protection.