Happy Leap Day!

I wrote this in February 2016 and have not wanted to change it since.
The book I had in mind? I finished writing it. It leaped across the Atlantic in December last year, probably straight into the publisher’s waste-paper basket, though I shall not know for a few months. But I’ll still come up laughing. There are far more important things in life than getting published.

And if celestial navigation is something you wonder about, try this.