"Oh yes. The Norse are coming, their fleet is collected and preparing for invasion. Their viking longships have gotten a major overhaul, and can now meet your ironclad steamboats in both maneuverability, speed and seaworthiness. They have been sharpening their weapons and making shrewd plans for their raids, and are set on taking back the land they discovered several hundred years before Christopher Columbus first set his foot on a ship deck. Californians beware, you are their first target!"