In Seven Tower? Hah! You'd be surprised. The sages and professors could be a bit stuffy, but there's a lot of different ways to practice magic when you're still learning. If you're trying to design a spell that makes objects arrange themselves into a specific shape or structure, for example, you wouldn't want to start by building a brick house. Books and blankets are much more forgiving if it decides to collapse.

[so........ he may have built some blanket/book forts in his lab, at some point, maybe. it was for very important wizard business. he'd try to remember how to make that spell again, but alas, none of his magic is working right now anyway, so they'll just have to settle for doing it by hand.]

We'll need blankets before we can start planning any forts, though. Sitting under a bare desk just doesn't have the same feeling. [meanwhile in the future, nene making blankets which will likely be used for this very purpose........... dreams do come true]