Seated one night in the hall of the castle, Sir Hugh desired the company to fill their cups and listen while he told the tale of his adventure as a youth in rescuing from captivity a noble demoiselle who was languishing in the dungeon of the castle belonging to his father's greatest enemy. 

The story was a thrilling one, and when he related the final escape from all the dangers and horrors of the great Death's-head Dungeon with the fair but unconscious maiden in his arms, all exclaimed, "'Twas marvellous valiant!" 

But Sir Hugh said, "I would never have turned from my purpose, not even to save my body from the bernicles."

Sir Hugh then produced a plan of the thirty-five cells in the dungeon and asked his companions to discover the particular cell that the demoiselle occupied.
He said that if you started at one of the outside cells and passed through every doorway once, and once only, you were bound to end at the cell that was sought. 
Can you find the cell? 
Unless you start at the correct outside cell it is impossible to pass through all the doorways once and once only. 
Try tracing out the route with your pencil.

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