When regally-bred Grade I winner Mendelssohn (Scat Daddy-Leslie's Lady, by Tricky Creek) joined the stallion roster at Ashford Stud in 2019, his half-brother Into Mischief had just received a bump in stud fee from $100,000 to $150,000 at nearby Spendthrift Farm. The next year, as Mendelssohn's first foals were hitting the ground, Into Mischief was represented by GI Kentucky Derby hero and eventual Horse of the Year Authentic. Today, as Into Mischief is now widely regarded as the leading stallion in the world, Mendelssohn awaits the day when his first...