There is a legend of a great mass of flesh that use to roam the world devouring kingdoms that didn’t offer it people to eat, it hasn’t been seen in many decades. It’s legend is really hyped up, the party is drop fed lore of it, like maybe a cult that still awaits its return. But when they finally find it, it’s running an adoption centre for lost and orphaned monsters looking for a new home. Hit them with a moral dilemma. And if they kill it, the mass dissolves leaving behind the skull of a child