Christmas on Troglodyte Hill This is Book Three of the Troglodyte Trilogy, which is set in the Loire region of France. This final book tells the story of Maud's 'Big Surprise' for Roodery, the heron and his friends in time for Christmas! Maud wants to thank Roodery for all his help throughout the year when he saved her village from a fire and when he found Thibault, a missing pupil, who was visiting from Saumur. Again easy French words and phrases are included in the text with the English equivalent next to it, to create a unique ambience.