They pitched their tent under the stars and went to sleep.
Sometime in the middle of the night Holmes woke Watson up
and said: "Watson, look up at the stars, and tell me what you see.
Watson replied: "I see millions and millions of stars." Holmes said:
"And what do you deduce from that?" Watson replied: "Well, if
there are millions of stars, and if even a few of those have planets,
it’s quite likely there are some planets like Earth out there. And if
there are a few planets like Earth out there, there might also be life."
And Holmes said: "Watson, you idiot, it means that somebody stole our tent."