Publisher's blurb: Black crusts of dried magma crack, and are sucked down in the flow of ever-rising hot currents; bubbling menacingly underfoot. The landscape is barren, rendered desolate by the noxious fumes, and the remnants of a tower—once great—have begun to crumble within the lava itself. Stairs of warmed stone lead up to a vine-encrusted platform, surrounded by six pillars—and at its centre waits an ancient, magical circle; pulsing, like the beat of a heart...