[...Did something growl? Was it the antenna? That only further confuses its purpose in Sagi's mind. All he can tell is that the sound feels more pattern-like when he goes right up to it, and that it isn't a pipe. He might have had a better idea of where or how to switch the thing off if it was.]

I don't know, but it couldn't hurt to briefly turn it off, right? It isn't working right now anyway, they said so. If it was controlling other things in the tower, there'd be... well, controls.

[But he could be wrong. He pockets both of the scribble-cards and wanders around the perimeter of the roof for now in case the controls are just hiding. His sandals crunch on scattered debris and scuffed dirt. Looks like someone was up here recently besides them, but not to clean. Unless Joss brought all this dirt up with him, but that seems excessive; compared to the forest cryptid Sagi first met, he looks somewhat less dishevelled today.]

Maybe in here... [He cautiously tries the handle.] Oh, it's locked. ...Maybe somewhere on the machine itself.

[How could this approach fail to inspire confidence?]