In the days that followed, Albert spent a great deal of time in the Room of Requirement practicing the advanced Patronus Charm. However, with no one to guide him and no panel to assist, getting a Patronus to speak in human words in such a short time was truly no easy task.
Still, these days of trial and practice were not without reward; the skill experience for the Patronus Charm shot up rapidly. Unfortunately, the advanced Patronus Charm simply refused to appear on his skill panel, leaving Albert quite helpless. He figured he would need to raise the Patronus Charm skill to level three before he could hope to master its advanced techniques more smoothly.
Another equally profound spell, the Undetectable Extension Charm, had been raised directly to level two using Albert's experience pool, and he had essentially mastered it. He had even crafted a palm-sized wooden box, its interior capacity permanently expanded through repeated casting to be large enough to hold his small leather suitcase.
Chapter 220