As soon as she was out of sight, the mages raised their voices, strengthening the chant spell. The four who had joined their master split away in two pairs to take up station’s at opposite sides of the container. Their song rose again in volume as Wilson stepped up to the tank. The paired mages split, one of each couple remaining in place while the other walked a quarter of the way around the circumference. The cardinal points occupied, they raised their chant almost to a shout before dropping it to a soft, monotonous tone.