The iPad came on as I set off to my 'workspace' lighitng up he bedroom and conveninetly helping me locate slippers and dressing gown.
I held the suprisngly bright tablet close so as not to wake my wife.
As I passed a mirroer the errie glow made me think of a ghost and how ghosts might be travellers wandering through your present nosing about, researching their family or on an adventure of some other kind.
An iPad might be a valuable piece of kit for any timetraveller (not that you'd get a signal), handy for keeping a record of what you discover and perhaps a Google Timeline that let's you navigate in both space and time.
Time I went and wrote a trial exam question!