Is there no rest for the travel worn and weary? Not if you are Nathaniel Fludd, world's youngest beastologist-in-training! All Nate really wants is to track down his missing parents, but when a unicorn falls mysteriously ill, Nate's Aunt Phil makes it clear where beastologists duties lie: to the beasts who need them.
And if ministering to the beasts of the world isn't difficult enough, Nate and Aunt Phil must also keep them safe from a most villainous man who intends to do them harm. With all this taking up every last bit of his energy and time, will Nate ever find the parents he is so absolutely convinced are alive?