This resource explores the mystery of the Mary Celeste, a ship found abandoned in 1872. It presents various pieces of evidence related to the ship's situation, including the condition of its cargo, the logbook, and the absence of the lifeboat. Students are tasked with sorting these clues into categories of proven facts and speculations. Additionally, they are prompted to connect the clues to form a narrative about what might have happened to the crew, draft a theory, and pose their own inquiry question to deepen their investigation of this historical enigma.