You can purchase the audiobook a la carte here, but it is rarely on sale. Stick to subscription or library services for the best deal.
"I listen to audio books while I run. I usually need fast-paced thrillers to keep me going. But Edenbrooke was different. I found myself running slower just to make the book last longer. Philip's voice in my ears was the best running partner I've ever had." – edenbrooke audiobook