The magic Crystal Ball is used by Hildy and Grim to spy on the citizens of Jollywood to plot their misdeeds as well as their source of information.
When called upon by Hildy, the Crystal Ball appears only with eyes and a mouth in a cloud of green smoke. In "The Rock of Sages", he defaults to a snow globe displaying the Glooms' home after losing magic inside him. In "Miss Fortune Teller", he defaults to a globe.
In addition to acting as an aide to the Glooms, the Crystal Ball also has a knack for telling bad jokes (often accompanied by canned laughter), which annoys Hildy but delights Grim.