temeraire had hunted out and cleared a large cavern , on his arrival , to sleep in ; but it would be damp , no matter what he did in the way of lining it with grass , or flapping his wings to move the air , which in any case did not suit his instinctive notions of dignity : much better to endure every unpleasantness with stoic patience , although that was not very satisfying when no-one would appreciate the effort .