Books like The Conqueror Worms

One day the rain just didn't stop. As the flood waters slowly rose and coastal cities and towns disappeared, some people believed it was the end of the world. Maybe they were right. But the water wasn't the worst part. Even more terrifying was what the soaking rains drove up from beneath the earth — unimaginable creatures, writhing, burrowing ... and devouring all in their path. What hope does an already-devastated mankind have against ... THE CONQUEROR WORMS?