six in the morning
It was supposed that the robbers , seeing this lighted and guarded room , had crept past it and mounted to the banker 's chamber to pursue their nefarious purpose there ; that simple robbery was their first intention , but being seen by the watchful banker , they had instantly killed him to prevent his giving the alarm . For no alarm had been given ! Every inmate of the house who was examined testified to having passed a quiet night , undisturbed by any noise . The hall porter and footmen whose duty it was to see to the closing of the castle at night , and the opening of it in the morning , testified to having fastened every door at eleven o'clock on the previous night , and to having found them still fastened at six in the morning . How , then , did the murderers and robbers gain access to the house , since there was no sign of a broken lock or bolt to be seen anywhere , except in the safe in the banker 's room . Suspicion seemed to point to some inmate of the castle , who must have let the miscreants in . Yes , but what inmate ?