Dr. Jordan called out as he ran after Ms. Cassatt. The kids and Ms. Stad followed him. Dr. Jordan grabbed the phone from the reception desk and repeated the urgent phrase through the intercom. His voice echoed throughout the museum. Within seconds, two security guards arrived, keys jangling from their hands. The one with SIMON WOOD on his name tag ran to the front door and locked it, while the other one, DEBORAH WEINSTEIN, said, “Back doors are secure. What’s happened?” “Have you seen Mirabel?” Dr. Jordan asked them, his dark eyes darting around the room. Both guards shook their heads. “Search the museum. We have to find her!” he commanded. “She’s stolen one of the artifacts.” The Code Busters and Ms. Stad stood frozen, watching the drama. Was Ms. Cassatt actually the thief? Where had she gone? Dr. Jordan left the entry room and joined the guards in their search for the missing woman. Quinn turned to the others and finger-spelled: Code Buster’s Key and Solution found on this page, this page.