midnight
It was not the size of the hand , but the imprint of the wart that had so startled the detective . Harry had not discovered the true cause of his friend 's excitement , and the detective concluded to say nothing about it then . Time was flying . The midnight express would soon leave the city . `` I can not remain with you longer , '' said Dyke Darrel , at length . `` I shall leave the case at this end of the route in your hands , Harry , and if at any time you wish to communicate with me , address me at Woodburg . '' `` All right .