This is a history book. Among the rugged Auvergne Mountains, in the southern part of France, stands a castle that is severe and almost grim in its aspect. Two bare round towers flank the building on the right and on the left. Rows of lofty French windows are built across the upper part of the front, and the small, ungenerous doorway below has a line of portholes on either side that suggest a thought of warlike days gone by.