When detect magic is cast on an elemental, or an area where an elemental resides (like a pool of water containing a hidden water elemental), which of the eight traditional schools of magic would the spell detect, if any at all?
I get that the act of summoning an elemental is conjuration, but once the elemental is present what type of magic does it constitute? I can only assume that some form of magic still exists; it is a magically animated elemental creature, after all. Does it still contain conjuration magic? Is it some other type? Since the creature is actually summoned from an elemental plane and not created out of thin air, would detect magic detect anything at all?