Stuart V.A. Hazard in Circassia. Book 5

McBooks Press, 2004.
First published 1972.The author's real name is Violet Vivian Finlay (1914-1983).
The fifth book about Phillip Hazard.
To break the stalemate in the Crimea, the British must search for unlikely help among the self-reliant mountain people of Circassia. Commander Phillip Hazard of HMS Huntress is dispatched with a select handful of his crew to seek out the guerrilla leader Serfir Pasha and win him over as an ally.