The Adventures of Blake and Mortimer: v. 3: Mystery of the Great Pyramid, Part 2 ~ Paperback ~ Edgar P. Jacobs

Captain Blake seems to have lost the first round in Part 1, having been assassinated at Athens airport. But a furious Mortimer swears that he'll never stop trying to avenge his friend. He goes on the hunt, but information is scarce. Strange happening occur when he comes under the protection of Sheik Abdel Razek and Mortimer soon feels like he's losing his way in his investigation which will lead him to the darkest depths of the Great Pyramid...