A Plague of Unicorns

Young James, the duke's son, asks too many questions. At least that's what everyone at Callendar Castle thinks after all but the last of James’ tutors quits and his uncle ships him off to be educated at Cranford Abbey. Unfortunately, the once-beautiful abbey has problems of its own, including cracked walls, a leaking roof, and shattered windows. Not to mention the pesky herd of unicorns that continue to enter the abby's orchards and claim them as their own.
The only hope to save the abbey is money raised by Abbot Aelian's golden apple cider. But that means getting rid of the orchard's unwelcome visitors. And, as everyone knows, unicorns have very sharp horns. Monks do not.
James has an idea that could help defeat these hungry beasts, but first he must find someone to listen to him. For once, he might be the only one asking the right questions. And the only one who knows the perfect hero for the job.