Good Neighbors [Common Meter]

In caverns below the city
lives a beast, reviled.
It's fierce and ancient and patient
-n- won't come up unless riled.

When you read of disappearance:
kidnapped or ran away?
It might be neither one, rather,
it's breached the light of day.

So, if this beast is not one you 
wish to look in the face,
When you take to song and dance:
don't stomp or over-Bass!