CHAPTER XXX

THE ADVERTISEMENT THE question of the caves intrigued Michael more than any feature the case had presented. He bethought himself of Mr. Longvale, whose knowledge of the country was encyclopædic. That gentleman was out, but Michael met him, driving his antique car from Chichester. To say that he saw him is to mistake facts. The sound of that old car was audible long before it came into sight around a bend of the road. Michael drew up, Longvale following his example, and parked his car behind that ancient ’bus. “Yes,…