Strange Adventures (1950-1973) #157

“PLIGHT OF THE HUMAN COCOONS!” Four men from Earth are captured by friendly aliens who need their help to discover the reason why they are shrinking. Plus, “THE IMMORTALITY SEEKERS!” Aliens visit Earth to rediscover the secret of immortality which was found there, millions of years earlier by another member of their race, but lost before he could reveal it to his home world.