Professor Alia Mirza had spent twenty years studying the fractures of the post-Ottoman world, but she had never heard of İslam Devleti Arşivi —the Archive of the Islamic State. Not the one splashed across headlines in the 21st century. No, this was older. Stranger. A footnote in a diary she’d found in a Damascus flea market, the ink faded to rust.

So she did the only thing a historian of ghosts could do.

She could not bring the files to the outside world. The world would politicize them, weaponize them, turn them into either a martyrdom or a menace.