en Cuevana 3. Mr. Prentiss is an appraiser at his firm, the House of Prentiss. He is about to go to Florida to appraise a vast collection of a recently deceased collector, Van der Locken, when he receives an unwanted visit from Ivor Hager, who informs him of "The Left Fist of David," a valuable but mysterious art object that was stolen from a Mexican church. An unsold TV Pilot