The stellar weekend for Spendthrift Farm stalwart Into Mischief continued with a new stakes winner in Monmouth's Sorority S. Monday. Unveiled against New York-breds sprinting at Saratoga, Mischievous Dream closed to win by a length July 19, but could only manage fourth after a wide trip over course and distance in the Bolton Landing S. there Aug. 19. Stepped up to a mile for the first time, the third choice sidled over to the rail and settled in midpack in the full field behind splits of :23.20 and :48.37. Catching...