If she needed an explanation, Zozo would be more than happy to provide her with one.

...right after they got the hell out of here. Judging by how hard those officers were shaking, they had about 30 seconds to run. Gripping Staffy tightly, she turned to Ruby and nodded in agreement. "I can take you someplace safe if you want. Just stick with me."

Hopefully Ruby responds, because she's not about to wait around for the navy to break out. That spell took a fair bit of mana to use. Not something she wants to spam.