What happened was we were in Wizards Mansion, (by Dridder's Forest) there were many transformation potions, one was spilt on caylin, and she became a slime, we went to find the antidote but the bottle was empty :( thankfully the slime potion's effects were not permanent or maybe it was a magic slime transformation potion, we're not sure, but all we know is it takes mind power to be able to switch back and forth between the two forms... if thats the case on controlling the slime ability, shouldn't be hard to master!
For Preferences and back ground info see Caylin