Note 7
"But a time came when it was considered that I could be more useful if I put on uniform and on December 12th 1941 I was granted a commission in the R.A.F.V.R.

"That changed my whole situation as, although in the past I have burned much midnight oil, I find it quite impossible to switch my mind off my duties every twelve hours and concentrate on writing a new fiction book in the very little leisure I now get."

'This Book' – introduction to 'Mediterranean Nights' 1942