he mannequin forward； exposing an umbilicus running out the back； at the base of the hips。
〃Wires 。。。〃
〃Not wires；〃 Ted said。 〃Glass。 Optical cables。 This whole ＇＇79＇＇ ship uses optical technology； and not electronics。〃
〃In any case； it's one mystery solved；〃 Harry said； looking at the dummy。 〃Obviously this craft was built to be a manned ship； but it was sent out unmanned。〃
〃Why？〃
〃Probably the intended voyage was too dangerous。 They sent an unmanned vessel first； before they sent a manned vessel。〃
Beth said； 〃And where did they send it？〃
〃With time travel； you don't send it to a where。 You send it to a when。〃
〃Okay。 Then to when did they send it？〃
Harry shrugged。 〃No information yet；〃 he said。
That diffidence again； Norman thought。 What was Harry really thinking？
〃Well； this craft is half a mile long；〃 Barnes said。 〃We have a lot more to see。〃
〃I wonder if they had a flight recorder；〃 Norman said。
〃You mean like a mercial airliner？〃
〃Yes。 Something to record the activity of the ship on its voyage。〃
〃They must have；〃 Harry said。 〃Trace the dummy cable back； you're sure to find it。 I'd like to see