“I don’t know.” That he could do it was no longer a question, but the degree of strength or stamina that would need to be involved was unguessable. A fairly small area of freezing cold had been a strain, but if the ice really was like muscles, the more he did it,the more he’d be able to do. “Maybe a week or two for a decently-sized area, if I push?” He intended to push either way. “If all you want is a small proof of concept, we could try for snow just on us right now.”