Bob Morane

Bob Morane and Bill Ballantine want to relax for a few days at Mauregard Castle in France, but the old walls are haunted by the ghost of Ysabel de Mauregard. Many hundreds of years ago, the lady of the castle was innocently burned as a witch. With the help of Captain Graigh's time machine, Bob and his friend travel to the Middle Ages to bring justice. They meet the real Ysabel, who is being treated badly by her cousins. The lords of Henaurmes want to drive her off their lands and will stop at nothing to do so. For Bob, of course, it is a matter of honour not only to save the noble lady from the stake, but also from an undignified existence as a castle ghost ...