Sue steps inside the Great Brass Railway Museum. Her heart skips with excitement. She knows every engine by heart. The 1870 Iron Horse. The speedy Hudson 4-6-4. Suddenly, the museum doors swing wide. A massive crowd rushes inside. Voices echo off the high glass roof. Boots clatter on the tile floor. The sudden roaring noise feels like a prickly buzz against Sue's skin. Sue immediately slides her big teal noise-cancelling headphones over her ears. The roar softens to a gentle hush. Sue counts slowly in her mind. One, two, three, four, five, six, seven, eight, nine, ten. Her breathing steadies. Now she can look.