Chicago's Field Museum is home to over a dozen ancient Egyptian mummies but one in particular has perplexed researchers for years. Now, the mystery of Lady Chenet-aa's burial procedure appears to be solved with the use of a CT scanner. Lady Chenet-aa lived roughly 3,000 years ago amid the 22nd Dynasty during Egypt's Third Intermediate Period. Soon after her death, one of the ways funerary experts prepared her for the afterlife was by constructing a cartonnage--a paper mache-like box housing a deceased person's body. In Chenet-aa's case, however, there isn't any hint of a visible seam, leaving Egyptologists to wonder for years exactly how embalmers placed her inside the casing. According to an October 24 announcement from the Field Museum, a mobile CT scanner helped to finally explain the strategy behind Chenet-aa's "locked-mummy" cartonnage, as well as new physical information about her at her time of death.