Irvin S. Yeaworth

Building a new harbor off the coast of an island, an American engineer sets off a blast on the ocean floor that uncovers the frozen bodies of a Brontosaurus, a Tyrannosaurus Rex and a Neanderthal Man. They are hauled ashore by the crew, who are unaware that the giants are still alive. Struck by lightning during a storm, the monsters awaken and prowl the island jungles! Also restored to life is the caveman, an amiable brute who joins the island boy...

He walks through walls of solid steel and stone into the fourth dimension. Scientific whiz Tony Nelson has made an amazing discovery. He has developed a method of stimulating the molecular structure of objects so that they can be joined or passed through one another. Stumbling upon his incredible secret is Tony's older brother, Scott, a fellow scientist who decides to take the experiment one step further. Soon he is able to pass himself through doors...