<prompt> Translate the following text to EnglishKatika chumba hicho kilichofungwa, chenye mlango mzito, alijihisi amekatwa na ulimwengu, na nguvu mbaya ya mhalifu huyo mkuu ilionekana kuwa halisi zaidi.  <response>: In this sealed and closed chamber, with its close-fitting heavy door, he felt cut off from the world, and the sinister power of the arch-criminal seemed more real. 