I knew I shouldn't sleep.

It was a most beautiful moonlight night, and I suddenly thought I'd like to go motoring.

I knew enough of the geography of those parts to know if I motored across country I should strike the Great Northern main line somewhere and catch a train to Edinburgh in the early morning.

So--I just cleared out." "Ah--you see you had quite a number of reasons!" said the chief, smiling again.

"Very well.