Not long afterwards the Saint was insulted by the seizure and execution of an offender who had taken sanctuary and was clasped in his arms. Columba went over the wild mountains and raised the tribes of Tyrconnell and Tyrone, and defeated King Diarmid in battle. When the Saint went to Iona he left the copy of Finnen's Psalter to the head of the chief tribe in Tyrconnell. It was called the _Book of the Battle_, and if they carried it three times round the enemy, in the sun's course, they were sure to return victorious. The book was the property of the O'Donnells till the dispersion of their clan. The gilt and jewelled case in which it rests was made in the eleventh century: a frame round the inner shrine was added by Daniel O'Donnell, who fought in the Battle of the Boyne. A large fragment of the book remained in a Belgian monastery in trust for the true representative of the clan; and soon after Waterloo it was given up to Sir Neal O'Donnell, to whose family it still belongs. It is now shown at the Museum of the Royal Irish Academy. 'The fragment of the original _Book of the Battle_', says O'Curry, 'is of small quarto form, consisting of fifty-eight leaves of fine vellum, written in a small, uniform, but rather hurried hand, with some slight attempts at illumination.' We have now to describe the great increase of books in Northumbria. In the year 635 Aidan set up his quarters with a few Irish monks on the Isle of Lindisfarne, and his Abbey soon became one of the main repositories of learning. The book called _The Gospels of St. Cuthbert_ was written in 688, and was regarded for nearly two centuries as the chief ornament of Lindisfarne. The monastery was burned by the Danes, and the servants of St. Cuthbert, who had concealed the 'Gospels' in his grave, wandered forth, with the Saint's body in an ark and the book in its chest, in search of a new place of refuge. They attempted a voyage to Ireland, but their ship was driven back by a storm. The book-chest had been washed overboard, but in passing up the Solway Firth they saw the book shining in its golden cover upon the sand. For more than a century afterwards the book shared the fortunes of a wandering company of monks: in the year 995 it was laid on St. Cuthbert's coffin in the new church at Durham; early in the twelfth century it returned to Lindisfarne. Here it remained until the dissolution of the monasteries, when its golden covers were torn off, and the book came bare and unadorned into the hands of Sir Robert Cotton, and passed with the rest of his treasures into the library of the British Museum. [Illustration: INITIAL LETTER FROM THE GOSPELS OF ST. CUTHBERT.]