Theo looked at... the spell beginning with D next, because he wanted to get the tricky ones out of the way first. But of course he would get this one. Did you SEE him just cast Impervius? A totally new spell that he didn't know before. Theo was definitely surprising himself with magic this term, it seemed to have turned around a lot so far. However, he very often got cocky when he got too good at something, which spoiled it almost every time.

He dramatically cleared his throat, enough for the whole class to hear, then pointed his wand at a cobweb hanging in a corner of a wall.

The description of the spell was very brief in his mind. It had something to do with disappearing... things... he wasn't sure what things, but eh, he'd wing it again. "Delytrus." He pointed his wand to the target confidently, but absolutely nothing happened. Not even one spark. Oh, that was disappointing. Theo looked over to the board and sighed heavily. He'd said it wrong, of course.

Deletrius.

De-le-tri-us.

He nodded, pointed, and, "Deletrius!" The cobweb was still there, swaying slightly at the breeze made by his brisk wand moving. Theo pouted and went to have another go, but the spider that inhabited the web made a sudden appearance.... leaving Theo to make a swift DISappearance.

Never mind. It obviously wasn't meant to be with this spell, but at least he had taken a shot.