In 1915, a team of American archaeologists excavating the ancient Egyptian necropolis of Deir el-Bersha blasted into a hidden tomb. Inside the cramped limestone chamber, they were greeted by a gruesome sight: a mummy’s severed head perched on a cedar coffin.

The room, which the researchers labeled Tomb 10A, was the final resting place for a governor named Djehutynakht (pronounced “juh-HOO-tuh-knocked”) and his wife. At some point during the couple’s 4,000-year-long slumber, grave robbers ransacked their burial chamber and plundered its gold and jewels. The looters tossed a headless, limbless mummified torso into a corner before attempting to set the room on fire to cover their tracks.

The archaeologists went on to recover painted coffins and wooden figurines that survived the raid and sent them to the Museum of Fine Arts, Boston in 1921. Most of the collection stayed in storage until 2009 when the museum exhibited them. Though the torso remained in Egypt, the decapitated head became the star of the showcase. With its painted-on eyebrows, somber expression and wavy brown hair peeking through its tattered bandages, the mummy’s noggin brought viewers face-to-face with a mystery.