In a game, my PC hid using the cloak of elvenkind and the GM used Faerie Fire to expose me. Faerie Fire states that shimmering out line of an invisible creature is exposed. Will Faerie Fire expose you if you are hiding with advantage with the cloak of elvenkind?
I argued that Faerie Fire should only expose you if you are invisible and not while hiding (as in hiding behind, by or in something). Is this valid or not?