<prompt> Translate the following text to EnglishMwamba huo wenye mwamba mweusi uliokuwa ukiongezeka sana ulifanya ngome hiyo isiweze kushambuliwa na mtu yeyote isipokuwa kamanda mwenye ujanja zaidi.  <response>: The dramatically rising cliff of black basalt stone made the castle impregnable to all but the most wily commander. 