It was an insurance against the worst."
"Yes, yes, I see that. But how about the disappearance of the others?"
"I have not all my facts yet, but I do not think there are any insuperable difficulties. Still, it is an error to argue in front of your data. You find yourself insensibly twisting them round to fit your theories."
"And the message?"
"How did it run? 'Our own colours, green and white.' Sounds like racing.
Green open, white shut.' That is clearly a signal.
Main stair, first corridor, seventh right, green baize.' This is an assignation.
We may find a jealous husband at the bottom of it all.
It was clearly a dangerous quest.
She would not have said 'Godspeed' had it not been so.