Columcille was born in a remote corner of Ireland in the year 521. Legend has it that as a child, he was fed a cake filled with the letters of the alphabet, and so learned to love writing. He grew up to become a monk and a scribe a thousand years before the invention of printing, when books had to be copied by hand. There was one book, a beautiful volume of psalms from distant Rome, that Columcille especially loved, and even though its owner refused...