X--未知的元素 / X--the Unknown (1956)

　　British Army radiation drills at a remote Scottish base attract a subterranean, radioactive entity of unknown nature that vanishes, leaving two severely radiation-burned soldiers... and a "bottomless" crack in the earth. Others who meet the thing in the night suffer likewise, and with increasing severity; it seems to be able to "absorb" radiation from any source, growing bigger and bigger. What is it?? How do you destroy a thing that "feeds" on energy?

　　译文(2): 英国军队在苏格兰一个偏远的基地进行的辐射演习吸引了一个地下的、具有未知性质的放射性实体消失，留下两个被严重辐射灼伤的士兵... ... 和一个“无底”的地裂。其他在夜间遇到这种东西的人也遭受着同样的痛苦，而且痛苦的程度越来越严重; 它似乎能够从任何来源“吸收”辐射，越来越大。这是什么？你如何摧毁一个以能量为食的东西？