1.   All is not well under the castle roof of Derek and Odette.

2.   But the castle roof is dotted with gaping holes.

3.   Then suddenly, miragelike, a castle roof swings into view, towering above the rural Central Texas landscape.

4.   As a Royal Signals officer, Yule was chosen to operate a clandestine radio that the prisoners kept hidden in a small space in the castle roof.