Duty nods. Alfred and Cristabel both immediately spoke with him, silently but heard and understood. The butterfly resembling omen isn't like them. Nor is it like Duty's own omen, far more abstract like someone trying to draw a butterfly having never having seen a single insect or bird in their life.

"Lets keep going," Duty says. Glancing at the wall, he adds, "Watch for more." Of those, whether the same words or different. Someone painted instructions that worked, the once. Given the place's age, there's no guarantee any other words will be genuine, but they don't have much else to go on.