when you see boris karloff and bela lugosi a co star and you expect to find a well do horror movie and but this be actually quite different and represent a it do what i would describe a an early effort at science fiction . karloff and lugosi both play scientist ( rukh and benet respectively ) competitor to an extent and until rukh win benet over with a demonstration that prove his great theory . the science here be to say the least a bit rough around the edge ( thus science fiction and with the emphasis on the fiction ) but somehow rukh harness some sort of ray from andromeda that allow him to look at the earth several thousand million year ago . in that pre historic time and a huge meteorite slam into africa and leave deposit of a substance the scientist call radium x which can heal and destroy . a large portion of the movie be set rather tediously in africa and on a search for the meteorite deposit and which rukh eventually find and harness to create a great weapon and unfortunately infect himself with some sort of disease that make him a great weapon as well . karloff and lugosi be both pretty good here . lugosi pull off a role in which he the good guy pretty well and although i frankly find him a bit unconvincing especially during the scene set in africa . the story also plod along a bit and and while it hold my attention it do not captivate me . give that this be really a sci fi rather than a horror flick and and that sci fi be in it very early stage and i suppose the movie need to be cut a bit of slack . it be ok nothing more and but also nothing less than that . 4/10 .