Adalyn had lived in St. Louis her whole life. She was proud of her city. She loved the Gateway Arch, Forest Park, and the striking Cathedral Basilica of St. Louis. Adalynn's most favorite thing about the city, however, was the City Museum. From the life-sized whale that greeted visitors as they entered, to the elaborate cave system, and the jungle gym attached to the outside of the building, the museum was truly a one-of-a-kind place. The roof of the museum was incredible. There was an old-fashioned Ferris wheel, slides, and wildest of all, a real school bus that extended over the edge of the building! Adalyn loved to sit in the bus, perching precariously over the city, and let her imagination run wild. Adalyn and her brother, Atticus, had been to the museum many times over the years. They usually visited on Friday evening when the crowds were smaller. During peak visitor times, exploring the caves and tunnels made Adalyn feel like a sardine in a can. The siblings usually spent a few hours after dinner at the museum before enjoying an ice cream float in the restaurant, which was actually a historical log cabin. This evening, however, would be different. Adalyn had a plan. Tonight, she and her brother were going to sneakily spend the night at the museum! Adalyn had long pondered the possibility of staying in the museum after hours. She thought it would be so much fun to have the place to herself and explore all night long. A plan had finally fallen into place. Adalyn had told her mother that she and Atticus would sleep at their grandmother's house that night. She didn't like telling lies, but she had always wanted to spend the night in the museum. It wasn't going to hurt anyone. She and Atticus would be safe inside the building, and they would return home the next day. Their mom would be none the wiser. Adalyn hadn't told Atticus the plan. She knew he would blow their cover. Atticus was such a teddy bear. He was also an open book. Atticus was as honest as they came and hated to lie. Adalyn knew this was a great