I read this book in paperback in the late 70's early 80's and had read it a few times. The read was so well written and suspenseful. Kept me guessing "who done it". My paperback fell apart and I've been looking for a hardback and found it on eBay. I've bought 4 or 5 books in hardback and 1in paperback of books I read years ago and when I really enjoy a book I will read it again & again.
In this case the storyline takes place in a huge worldwide, family owned, billion $$$ pharmaceutical business. Each division is operated by a family member. When the current head of the company dies unexpectedly in a climbing accident in Switzerland and problems in the company have lawsuits brought about and it seems as if someone is sabotaging the company to force the sale of stock to outside interests so whomever is behind all the current problems and unexplained and unexpected deaths behind all the intrigue keeps you enthralled in the story from beginning to end.