The chief result of this expedition was the publication of Denkmäler aus Aegypten und Aethiopien (Monuments from Egypt and Ethiopia),[7] a massive twelve volume compendia of nearly 900 plates of ancient Egyptian inscriptions, as well as accompanying commentary and descriptions. These plans, maps, and drawings of temple and tomb walls remained the chief source of information for Western scholars well into the 20th century, and are useful even today as they are often the sole record of monuments that have since been destroyed or reburied. For example, he described a "Headless Pyramid" that was subsequently lost until May 2008, when a team led by Zahi Hawass removed a 25-foot-high sand dune to re-discover the superstructure (base) of a pyramid believed to belong to King Menkauhor.