"The Thing That Devoured a Planet!"
A University physics professor is asked to illustrate relativity to his students, and uses a tales of a galaxy spanning entity that devours planets. The kids think he's nuts, but he is only giving them a warning. 6 pages.
"Enter: The Machine Age!"
Reprinted from Journey Into Mystery (Vol 1) #17.
Man's dependancy on his machines grows out of control until they are slaves to their own devices. They rebel, but ultimately fall before their creations, commencing the true Machine Age. 5 pages.
"It Came From Beneath the Earth!"
A monster from below the Earth serves as scout for his people's invasion force. He travels through Manhatten, and the oddness of the inhabitants that he meets convinces him that they should call the whole thing off. 3 pages.
"The Eye of Doom"
Reprinted from Mystic #6.
Two explorers head off to Venus, but only one returns to tell the tale. Venus was inhabited by a race of floating eyeballs that would absorb any creature they found, and were possessed of telepathic powers. Tragically, the survivor was compelled to bring the creatures back home with him. 6 pages.