Bristlebane's face fell at the masters words. They were supposed to be able to hold this for a full week, and they were still on the easy stuff? There must be a trick to it, perhaps there was a way he could, tie off the magic. If he could make it so the sphere existed by itself then he would just have to "feed" it magic from time to time. He had glanced at Anna when she had gone on her spree of magic use and had learned a bit from watching how she quickly moved the threads. Bristlebane thought with a little work he could find a way to make the magic exist on its own. Carefully he coaxed the threads of magic around looping them around each other gently, then he let it go. The threads were suddenly pulled on as if the world was trying to drain it away and the threads slammed shut tying into a complicated knot. He grinned, knowing knots did come in handy, it looked like the sphere could sustain itself now without him having to focus on it. However as he watched a drip of magic managed to escape the intricate knot, it seemed it wouldn't last forever but the rate of decay would be much lower. He pumped the sphere full of almost of all his magic, the chill that came with it was almost normal now. Bristlebane sat on the ground breathing heavily, he now had a sphere about the size of a baseball that could keep its shape without his constant attention. "Hey, I think i figured it out." he said proudly. Normally there was no way they could hold a sphere for a week because it would vanish when you went to sleep, but this way if you could give it enough magic to survive the nights you could keep it up forever theoretically.