about midnight on Monday
A courteous red-faced old gentleman represented the railway company . `` This is where the young man 's body lay , '' said he , indicating a spot about three feet from the metals . `` It could not have fallen from above , for these , as you see , are all blank walls . Therefore , it could only have come from a train , and that train , so far as we can trace it , must have passed about midnight on Monday . '' `` Have the carriages been examined for any sign of violence ? '' `` There are no such signs , and no ticket has been found . '' `` No record of a door being found open ? ''