Thought this was a really engaging WW2 story, it was some time ago that I read it, so details in my memory are vague, but I remember thinking it was excellent.
This was Alexander's fourth and final book, a fitting successor to his first three. That his first, "Death of a Thin Skinned Animal" won the John Creasey Award should be testament to how well Alexander had mastered his craft. The present story is set in the few weeks leading up to D-Day. A senior British officer has been downed behind German lines: he knows the details of D-Day. Obviously, even to our placid eyes, he can not be allowed to fall into German hands. They send for Ryfka. Although barely recovered from her last mission to occupied France, it is in her territory the officer has gone down. As the sole survivor of her group, she is the only one with the expertise needed for the job. Alexander, while writing a tad fraught for our modern taste, yet delivers tension and suspense most writing today can not match. A very good job by a sadly gone master. Recommended.