She frowned. It wasn't a fair advantage, if she didn't know where Mercedes was in all chaos, Colleen would be distracted too. "Ravenclaws do have their ways of disappearing and turning up again," was all she said about it. "And maybe by then, we'll have figured out this web problem. Magical silk doesn't seem like a new phenomenon, does it?" There had to be a spell to counter it in this day and age.