After class, Albert deliberately stayed behind, cornering Professor Smith in the classroom to make him honor his promise and teach him the Undetectable Extension Charm.
The panel's quest rewards had this one annoying flaw: sometimes the rewards were delivered to him through other channels. This time it was quite a hassle; instead of directly granting him the ability to cast the Undetectable Extension Charm, it required Professor Smith to teach it to him.
They were going to Hogsmeade tomorrow. Once he dealt with Mundungus and managed to get a piece of a horklump's hide from him, the Undetectable Extension Charm would come in very handy.
Chapter 215