The setting is in the Middle East; this time in that post-WW I abomination fostered by BritainIraq. The story is set at a remote archeological dig, and proceeds just about as slowly. It takes nearly 60 pages just to get to the murder. This is a wearisome case for Poirot as there is no clear suspect for another 100 pages. But now, following another murder and a disappearance, he jumps quickly to the chase. The unmasking of the perpetrator is just about as tedious for the reader.