Silas blushed slightly as the Professor focused on him. So he hadn't been a total blundering fool? Awesome. But her attention maybe him dry heave a bit. INTERNAL FLAILING.
A small smile soread his lips, though as he nodded and took an extra piece of parchment out to write the incantation upon.
...and really he was only a third year... so he of course onky knew the most basic freezing spell. The one with ice from the wand. Everybody knew it, right?
And with a shaky arm he held his parchment high for everyone to see. Ugh. EVERYONE.