User blog comment:Ratrangerm/Unanswered Season Two Questions: Have A Few Been Answered?/@comment-34954086-20130305073941/@comment-5188108-20130307215400

I think the only reason transmutation wasn't used in the first instance was that we only had one example - was it transmutation or just vaporisation? But in Intervention the floor seems to turn to sand, so transmutation it is.