The simple premise of this slim book is that a manuscript donated to Corpus Christi College (Cambridge) by Matthew Parker, Archbishop of Canterbury in the mid-16th century, is the Psalter of St. Alphege and was in the possession of Thomas Becket when he was martyred in Canterbury Cathedral in December 1170. Christopher de Hamel, academic librarian and manuscript expert, makes the case in this fascinating historical detective story. As we approach the 850th anniversary of Becket’s death, this delightful book provides a compelling introduction to readers unfamiliar with his remarkable life and even more remarkable times.