"It’s a conjuring spell, all right, but not one I’m familiar with." Aziz said. "Definitely hermetic, and definitely related to the summoning of a spirit. But the diagram for the hermetic circle isn’t like any I’ve seen before. Usually it encloses a square pattern representing the four elemental energies. This one omits the square entirely, and instead places a pentagram at the middle of the circle. The first four symbols at each of the lower points I recognize—they’re the standard glyphs for the elements of fire, water, air, and earth. But I’m not familiar with this fifth one, here at the top of the pentagram. It’s almost reminiscent of a yang symbol. Hmm . . ."