A squirming wall of bodies, groping arms and tentacles, and moaning, biting mouths heaves itself up from the ground at a point you choose.

The wall is 6 inches thick and is composed of ten 10-foot-by-10-foot panels. Each panel must be contiguous with at least one other panel. Alternatively, you can create 10-foot-by-20-foot panels that are only 3 inches thick.

You stand frozen, mesmerized by the grotesque spectacle unfolding before you. A chaotic amalgamation of writhing limbs, sinuous tentacles, and gnashing mouths emerges, a nightmarish tide surging upward, each pulsating appendage seemingly reaching for your very soul.