Captain America: Holocaust for Hire (Marvel Novel Series, No. 4)

The story is pretty straightforward. Cities around the globe are being destroyed by violent earthquakes. Problem is, none of the cities lay on geologically active areas. Reporters Jake Sheridan and Amanda Twain believe this is tied to the disappearance of Dr. Gregory Crandall, who was doing work on "advanced sonics" when he vanished five months previously along with his daughter. So does Captain America, who is cutting a swath across New York's underworld trying to find out what happened to the doctor who invented a weapon capable of destroying cities. The Red Skull, on the other hand, just might. Before long, Cap, along with Nick Fury and SHIELD, are engaged in a race to stop the Skull and his personal army of neo-Nazis from using his newfound weapon to establish a Fourth Reich. First, however, Cap has to find the scientist. Too bad that's exactly what the Skull wants him to do...