ten o’clock
`` To an end ? '' `` Yes , sir . And no later than this morning . I went to my work as usual at ten o'clock , but the door was shut and locked , with a little square of cardboard hammered on to the middle of the panel with a tack . Here it is , and you can read for yourself . '' He held up a piece of white cardboard about the size of a sheet of note-paper . It read in this fashion : `` THE RED-HEADED LEAGUE IS DISSOLVED .