Serenus accepted the brownies, beaming. "Thank you! Although if Tybalt is very, very good, I might share one with him. No sale, unfortunately," he continued with a little grimace. "Severus has been having trouble with his brewing lately, so it's been difficult for him to keep up with demand." He shook his head and breathed a frustrated sigh. "I'm sure you've noticed how unreliable magic has been lately, and the botched brewing is just another example of how bad it's getting."