A detective agency investigates strange occurrences and something of unknown origins buried deep underground!Workmen constructing a new section of the London underground near London Bridge during the Second World War uncover something of unknown origins in a large underground cavity and leading scientists and archeologists are brought into discover what is buried away, so deep beneath the ground ...Scientists unsuccessfully scan below the ground, searching for what is below, but while using a new form of the scanning technology they uncover things that never showed up on the original scans, and realize something below is stopping them from seeing what is there ...Something strange is buried deep below, hundreds of feet below, at least thousands of years old, and a blurred image of it is detected, and after examinations of it they grasp its colossal size ...