translation.en: It seemed hopeless to pursue the inquiry any farther, but it was clear that in spite of Holmes's ruse we had no proof that Barrymore had not been in London all the time.
translation.no: Det syntes håpløst å fortsette undersøkelsen videre, men det var klart, at tross Holmes' list hadde vi ennå ikke noe sikkert bevis for at Barrymore ikke hadde vært i London hele tiden.