III. At present, no document from Senusret II's reign has been discovered from Lahun, the king's new capital city. Tomb treasure In 1889, the Egyptologist Flinders Petrie found "a marvellous gold and inlaid royal uraeus" that must have originally formed part of Senusret II's looted burial equipment in a flooded chamber of the king's pyramid tomb. It is now located in the Cairo Museum. The tomb of Princess Sithathoriunet, a daughter of Senusret II, was also discovered by Egyptologists in a separate burial site. Several pieces of jewellery from her tomb including a pair of pectorals and a crown or diadem were found there. They are now displayed at the Metropolitan Museum of New York or the Cairo Museum in Egypt. In 2009, Egyptian archaeologists announced the results of new excavations led by the Egyptologist Abdul Rahman Al-Ayedi. They described unearthing a cache of pharaonic-era mummies in brightly painted wooden coffins near the Lahun pyramid. The mummies were reportedly the first to be found in the sand-covered desert rock surrounding the pyramid. Pyramid The pyramid was built around a framework of limestone radial arms, similar to the framework used by Senusret I. Instead of using an infill of stones, mud and mortar, Senusret II used an infill of mud bricks before cladding the structure with a layer of limestone veneer. The outer cladding stones were locked together using dovetail inserts, some of which still remain. A trench was dug around the central core that was filled with stones to act as a French Drain. The limestone cladding stood in this drain, indicating that Senusret II was concerned with water damage. There were eight mastabas and one small pyramid to the north of Senusret's complex and all were within the enclosure wall. The wall had been encased in limestone that was decorated with niches, perhaps as a copy of Djoser's complex at Saqqara. The mastabas were solid and no chambers have found within or beneath, indicating that they were cenotaphs and possibly symbolic in nature. Flinders Petrie investigated the auxiliary pyramid and found no chambers. The entrances to the underground chambers were on the southern side of the pyramid, which confused Flinders Petrie for some months as he looked for the entrance on the traditional northern side. The builders' vertical access shaft had been filled in after construction and the chamber made to look like a burial chamber. This was no