about ten o'clock
`` Good idea , '' said Winckel . `` We shall soon find out . '' The household was awakened . Inquiries and investigation showed that Lauer , a trusted employee of Winckel , had taken a last look at the prisoners at about ten o'clock . He was certain of that ; he had heard their voices , although he could not make out what they spoke about . There were sighs of relief from Schmidt and O'Reilly , who felt that the situation was covered , but Winckel was more skeptical and less canny . `` I will admit that they were here until ten o'clock and later .