Gretchen Young, the powerhouse Hyperion editor who masterminded Caroline Kennedy‘s book, is at it again. She was recently seen lunching with exiled Iranian actress Shohreh Agh dashloo at Michael’s. We hear Hyperion is one of four pub lishers bidding for the rights to the memoir of the Emmy- winning, Oscar-nominated ac tress. Aghdashloo’s name is being batted around again as the dark-horse Oscar contender for her performance in “The Stoning of Soraya M.”