My brother Dan alerted me to this. I can't believe it. The Codex Calixtinus is a 12th Century guidebook for medieval pilgrims following the Way of St. James. It is a practical document that gave advice to those making the journey. It also contained homilies and sermons in honour of St. James. It is simply beautiful. It is rarely on display, and kept secure. It was found to be missing on Wednesday afternoon, 5th July 2011. This YouTube clip is the Kyrie from the Missa Sancta Jacobi contained within the Codex. I am sad about it all, and will sincerely hope that it is returned for the feast of St. James on July 25th.