The Thirty-Nine Steps
This book can be downloaded and read in Apple Books on your Mac or iOS device.
The Thirty-Nine Steps is an adventure novel by the Scottish author John Buchan. It first appeared as a serial in Blackwood's Magazine in August and September 1915 before being published in book form in October that year by William Blackwood and Sons, Edinburgh.  It is the first of five novels featuring Richard Hannay, an all-action hero with a stiff upper lip and a miraculous knack for getting himself out of sticky situations.
Just right. A story told very well.
The 39 Steps Critique
"The 39 Steps" by John Buchan is not for everyone. My mother used to teach this book to 8th grade students in a private school whose name would be better not said. Some of the children liked it, and some did not. I personally did not care for this novel. I thought that it was confusing and a bit too odd. I am not biased, I do not recommend this novel. But do not listen to an old bat like I; go and read the book for yourself. Like I have previously stated, I do not dislike the book. But I would not buy it; I might again someday rent it from the library or something. Go and tea it and make your own review; you may end up loving it.
One of the best run and chase novels i have read!!!