Theo listened to the message, snorting. Professor Snape's standards had always been high, but this was ridiculous. He wanted him to learn a corporal patronus? And then to make it speak? Was that even possible?
Well apparently it was, though he'd never heard about such a thing. From the sound of it, he had to learn, and quickly. Though the challenge was to learn the Patronus charm, it was difficult, everyone knew that. He sighed. One thing you had to hand to the Dark Lord, he did make some things easier. Like sending you a book and telling you to use it for communication.
He got up and went to the library, it seemed he would have to read up on the Patronus charm.