chunk: It is concerned mainly with Queen Mary's imprisonment at Loch Leven Castle in 1567, her escape, and her defeat. Parallel to this is the romance of Roland Graeme, a dim-witted but spirited youth. He is brought up at the castle of Avenel by Mary Avenel and her husband, Halbert Glendinning. Roland is sent by the Regent Murray to be page to Mary Stuart with directions to guard her. He falls in love with Catherine Seyton, who is one of the ladies-in-waiting to the queen. He is found later to be the heir to Avenel. Edward Glendinning, the brother of Halbert, is the abbot of the title, the last abbot of the monastery described in the preceding novel.Ten years had passed since the final events of The Monastery, during which Halbert had been knighted for his services to the regent, and Lady Avenel had adopted Roland, whom her dog had saved from drowning. The boy grew up petted by his mistress, but disliked by her chaplain and servants; and at length, having threatened to dirk the falconer, he