In &quot;The House of the Hidden Places&quot;, first published in 1895, Walter Marsham Adams clearly lays out evidence that the Great Pyramid at Giza corresponds architecturally to the initiation ritual detailed in the Egyptian Book of the Dead (which Adams preferred to call what he felt was its rightful title, &quot;The Book of the Master&quot;).<br /><br />&quot;The House of the Hidden Places&quot; was the first book to go beyond the current speculations on the astronomical purpose of the pyramid to reveal its deeper meaning.