Rukia turned to watch, paying close attention, heightening her senses so that she could feel his spiritual energy. Again, she saw the ice begin to crack but this time, it was cracking a little more. Slivers began to fall, and slowly but surely, the ice stopped growing. And then it shot up around him, freezing in a column, holding him in place. She stared and waited, hoping he'd build up enough spirit energy to break the ice. She'd give him another minute and then she'd have to break him out.