The sun is blinding, and it’s just too much for Emma Maayan-Fanar. So, the art historian steps inside an ancient church to find the coolness she craves. But as she looks up at the roof, she discovers something astonishing. It’s a painting – dirty and damaged, for sure, but there’s no mistaking what it shows. That, right there, is Christ’s face. And what Maayan-Fanar has stumbled across – purely by chance – could change what we know about art.