Episode 3

The owners of Elizabethan Pitchford Hall in Shropshire are puzzled by dangerous sinkholes on the estate, possibly caused by an extraordinary subterranean Georgian bathhouse. In Dorset, American countess Julie Mapperton is hard at work restoring Mapperton House, and Brancepeth Castle opens its doors for the annual Dragon Quest, celebrating the legend of the infamous Lambton Worm.