One of the scientist pulls Jesper and William aside. 

"I can tell you," she glances over her shoulder. "But don't let anyone know. And don't tell the other scientist that I told you." She leans in. "They're dragons. We're breeding them and we're trying to create a very specific breed of dragon that hasn't been discovered yet, and we need to bend the laws in order to pull it off. It's not exactly... healthy for the dragons," she seems to feel a tad guilty. 

"We were worried you were with he Dragon Inspection Organization, or DIO. That's why we didn't let you come down. The thing is, only two of the eight people working in this lab are properly licensed. And, given the intense care that a domesticated dragon requires, there should only be four dragons per licensed scientist and one dragon per unlicensed personnel. We have... thirty... don't tell Ronald I told you, or the DOI. Please."