New research suggests that the people who buried the young woman took precautionary measures to stop her from coming back to life and exacting revenge on them

What did these items signify? Researchers led by Dariusz Poliński, an archaeologist at Poland’s Nicolaus Copernicus University, have spent the past four years trying to find an answer, and now, they’ve published their findings in the Journal of Archaeological Science: Reports.

The team’s analysis suggests that locals viewed the woman—now dubbed “Zosia”—as a threat, blaming her for misfortunes such as disease and famine for reasons that still remain unclear. To prevent Zosia from rising from the dead and causing further mayhem, they initially put a lock around her toe, then later returned to the grave to place the sickle over her neck.