By referring to the plan the reader will see the position of the hut in which we lived, and, following the path from our door through the cattle-yard of the hacienda, at the distance of two hundred and fifty yards he will reach the building represented in the plate opposite. It does not stand on an artificial terrace, but the earth seems to have been excavated for some distance before it, so as to give it elevation of position. It faces the east, and measures one hundred and forty-nine feet in front by forty-eight feet deep. The whole exterior is rude, and without ornament of any kind. A grand staircase, forty-five feet wide, now entirely in ruins, rises in the centre to the roof of the building. On each side of the staircase are two doorways; at each end is a single doorway, and the front facing the west has seven. The whole number of apartments is eighteen. The west front opens upon a large hollow surface, whether natural or artificial it is not easy to say, and in the centre of this is one of those features before referred to, a solid mass of masonry, forty-four feet by thirty-four, standing out from the wall, high as the roof and corresponding, in position and dimensions, with the ruined staircase on the eastern front. This projection is not necessary for the support of the building; it is not an ornament, but, on the contrary, a deformity; and whether it be really a solid mass, or contain interior chambers, remains to be ascertained by the future explorer.

At the south end the doorway opens into a chamber, round which hangs a greater and more unpenetrable mystery. This chamber is nineteen feet wide by eight feet six inches deep, and in the back wall a low, narrow doorway communicates with another chamber in the rear, of the same dimensions, but having its floor one step higher. The lintel of this doorway is of stone, and on the soffite, or under part, is sculptured the subject represented in the engraving opposite. This tablet, and the position in which it exists, have given the name to the building, which the Indians call Akatzeeb, signifying the writing in the dark; for, as no light enters except from the single doorway, the chamber was so dark that the drawing could with difficulty be copied. It was the first time in Yucatan that we had found hieroglyphics sculptured on stone, which, beyond all question, bore the same type with those at Copan and Palenque. The sitting figure seems performing some act of incantation, or some religious or idolatrous rite, which the "writing in the dark" undoubtedly explains, if one could but read it. Physical force may raze these buildings to the ground, and lay bare all the secrets they contain, but physical force can never unravel the mystery that involves this sculptured tablet.

Leaving this building, and following the path indicated in the map, at the distance of one hundred and fifty yards westward we reach a modern stone fence, dividing the cattle-field of the hacienda, on the other side of which appears through the trees, between two other buildings the end façade of a long, majestic pile, called, like one of the principal edifices at Uxmal, the Monjas, or Nuns; it is remarkable for its good state of preservation, and the richness and beauty of its ornaments, as represented in the plate opposite. The view comprehends the corner of a building on the right, at a short distance, called the Eglesia, or Church. The height of this façade is twenty-five feet, and its width thirty-five. It has two cornices of tasteful and elaborate design. Over the doorway are twenty small cartouches of hieroglyphics in four rows, five in a row, barely indicated in the engraving, and to make room for which the lower cornice is carried up. Over these stand out in a line six bold projecting curved ornaments, like that presented from the House of the Governor at Uxmal, resembling an elephant's trunk, and the upper centre space over the doorway is an irregular circular niche, in which portions of a seated figure, with a head-dress of feathers, still remain. The rest of the ornaments are of that distinctive stamp, characteristic of the ancient American cities, and unlike the designs of any other people, with which the reader must now be familiar. The tropical plants and shrubs growing on the roof, which, when we first saw it, hung over the cornice like a fringe-work, added greatly to the picturesque effect of this elegant façade.

The plate opposite represents the front of the same building. It is composed of two structures entirely different from each other, one of which forms a sort of wing to the principal edifice, and has at the end the façade before presented. The whole length is two hundred and twenty-eight feet, and the depth of the principal structure is one hundred and twelve feet. The only portion containing interior chambers, is that which I have called the wing. This has two doorways opening into chambers twenty-six feet long and eight feet deep, behind each of which is another of corresponding dimensions, now filled up several feet with mortar and stones, and appearing to have been originally filled up solid to the ceiling, making again casas cerradas, or closed houses. The whole number of chambers in this wing is nine, and these are all the apartments on the ground floor. The great structure to which the wing adjoins is apparently a solid mass of masonry, erected only to hold up the two ranges of buildings upon it. A grand staircase fifty-six feet wide, the largest we saw in the country, rises to the top. On one side of the staircase a huge breach, twenty or thirty feet deep, has been made by the proprietor, for the purpose of getting out building stone, which discloses only solid masonry. The grand staircase is thirty-two feet high, and has thirty-nine steps. On the top of the structure stands a range of buildings, with a platform of fourteen feet in front extending all round.

From the back of this platform the grand staircase rises again, having the same width, fifteen steps to the roof of the second range, which forms a platform in front of the third range; this last is unfortunately, in a ruinous condition, and it is to be observed that in this, as in all the other cases, these ancient architects never placed an upper building on the roof of a lower one, but always back, so as to rest on a structure solid from the ground, the roof of the lower range being merely a platform in front of the upper one.

The circumference of this building is six hundred and thirty-eight feet, and its height, when entire, was sixty-five feet. It seems to have been constructed only with reference to the second range of apartments, upon which the art and skill of the builders have been lavishly expended. It is one hundred and four feet long and thirty feet wide, and the broad platform around it, though overgrown with grass several feet high, formed a noble promenade, commanding a magnificent view of the whole surrounding country.

On the side of the staircase are five doorways, of which the three centre ones are what are usually called false doors, appearing to be merely recesses in the wall. The compartments between the doorways contained combinations of ornaments of unusual taste and elegance, both in arrangement and design. The two extreme doorways open into chambers, in each of which are three long recesses in the back wall, extending from the floor to the ceiling, all of which, from the remains still visible, were once ornamented with paintings. At each end of the building was another chamber, with three niches or recesses, and on the other side, facing the south, the three centre doorways, corresponding with the false doors on the north side, opened into an apartment forty-seven feet long and nine deep, having nine long niches in the back wall; all the walls from the floor to the peak of the arch had been covered with painted designs, now wantonly defaced, but the remains of which present colours in some places still bright and vivid; and among these remains detached portions of human figures continually recur, well drawn, the heads adorned with plumes of feathers, and the hands bearing shields and spears. All attempt at description would fail, and much more would an attempt to describe the strange interest of walking along the overgrown platform of this gigantic and desolate building.