Strasbourg Cathedral, a gothic jewel and the highest monument in the West until the 19th century, was both an excessive dream and an architectural feat. How, in the Middle Ages, was such a wonder made possible?
 
Behind its elegant, pink sandstone façade and its famous rose window, which is set ablaze at sunset, three centuries of visionary and inspired master-builders followed on from one another – Erwin de Steinbach, Ulrich d’Ensingen and Jean Hültz – as did craftsmen with a savoir-faire that was envied all over Europe. They return here in fiction form. An epic blending mystery, doubt, revelations, intrigue and tragedies.