A week after the painting’s return to New York, we all met again in the Hamptons, but this time with Darren. He’d mentioned to Casper he planned to accept an offer to teach again in London. He’d hired someone to oversee his gallery, and he’d be leaving in a week. The next day, Darren noticed study lists of names that Casper pored over, pulling at his hair as he tried to memorize them. One of them was Gunzel van Glop, underlined twice with the word “undiscovered!” To keep from being sued, Darren acquired Aunt Lauren’s habit of taping his conversations. He’d brought one from that morning to play for us. Darren (sighing): “There’s this painting at Fairuza Hanadi’s. I think there’s a way she could make a handsome profit. I could tell her and see if she’d be willing to share the commission, bu

