The King's chamber inside the Pyramid appears to be a chilly, abandoned space rather than a chamber appropriate for one of Egypt's greatest Pharaohs. In reality, the only "inscription" discovered within Khufu's pyramid is a red paint mark that has been argued to be a forgery. The real inscription on the Great Pyramid describes the Pharaoh as being loyal to his king. However, there are many other assumptions made about the inner workings of the pyramid based on text written by ancient historians. These include claims that: There were two chambers inside the pyramid - this assumption comes from Herodotus who said there were. However, there is no evidence to support this assertion and it is not thought to be true. The claim that the pyramid was built in three months has been repeated over time but there is no real basis for this idea. It may have originated with an anecdote told by Aristotle about how the Pyramids were built but this does not mean that they could be built in such a short amount of time. Indeed, it is now known that it takes around 10 years to build a pyramid. Some believe that the interior of the pyramid was painted black to make it look older than it is because they assume that it was built recently. But according to scientists this would not have kept out the sunlight for very long so it wouldn't have made the building any less energy-efficient.