Dave MacLeod is looking for the hardest challenges in traditional rock climbing. He finds a perfect project on the north face of Ben Nevis. Dave and his wife Claire move house to the foot of the mountain and Claire films his training, thoughts and eventual success on the Echo Wall project over the course of a year, including possibly the hardest free solo in the world (Darwin Dixit 8c).

With this puzzle book you start with super hard and move on up to out-of-this-world hard. The illustrations throughout might help and the answers are in the back.