It's easy to think that British WWII POWs invented escape, and the escape story. This story dates from the Great War and arguably inspired several of the next generation of escapers.
The escapers chose the deception route to gain their freedom, with an astounding patience and willingness to replan as successive attempts were thwarted.
The language is very much of its time - the book was published in 1919 - but manages to convey the agonising frustrations and delays endured by Jones and Hill, while still moving the story on with sufficient pace.
The book stands on its own as a (true) escape story, while also shedding light on the heritage of the WWII escapers, who were so much better prepared because, in part, of this book.