Chapter 3, Bevelle. Events in Kilika open up events in Djose and Bevelle (even though Djose is a hotspot and Bevelle isn't). Go to Bevelle first. Go back to where (SPOILER)Vegnagun was housed in the Bevelle underground, past the place where you fought (SPOILER)Baralai in Chapter 2. This will trigger a scene and after a fight with a MAlboro, the sphere will be left on the floor.