An ancient menace that was widely believed to have died in 1912 has now reappeared with a vengeance.

Zoa Promaji, a demonic horde of nearly six-hundred entities, had long been credited for some of the worst calamities to strike mankind during the past two-thousand years. Instigating disasters ranging from weather and seismic events to plagues responsible for the eventual deaths of millions of people mercifully came to an end when the demons guided an iceberg field into the path of the RMS Titanic. The horde in its entirety was believed to have perished in their attempt to murder their beleaguered sorcerer, Matija Badnjak, a passenger aboard the ill-fated ocean liner. But in recent years, the wicked entities that sank long ago with the mighty ship have been given new life by an unsuspecting treasure hunter. As a result, Zoa Promaji has reemerged in the modern world, thirsty for revenge after being imprisoned in the Atlantic's cold dark depths for more than a century. The demons seek to kill as many people as possible by combining storm systems, pulling magma to the earth's outer crust, and by invigorating diseases that had long been dormant. Roderick and the gang soon discover that these adversaries are far more powerful than anything or anyone they've encountered before.