Cari Chesterfield and her party attend a housewarming in picturesque Laureltown. Their hosts welcome their arrival and are grateful for their assistance in restoring their house, LaurelsHeath, to its former glory. However, prominent local landowner, Cyrus Sykes, and his flunkies seem to resent them and consider their visit an intrusion. During his sojourn there, Matthew Flanderly discovers that his old friend Simon Chesterfield, long believed deceased, is alive and that his wife is Jan LaFitte's sister. In addition, Simon's stepson, Elroy, has intense romantic feelings for Cari - as does Cyrus! Catacombs underneath Simon and Cyrus' adjoining properties are found to house golden bricks containing diamonds. However, access to the bricks suddenly becomes blocked due to a suspicious "freak" accident.... This leads Matthew to redouble his explorative efforts to access them enlisting the aid of Pierre D