Ok, overall though it's suspicious you land and make crater so he observed you and your eyes can display centuries of experience compared to mortal (outsiders can see difference between mortal and outsider).<br/><br/>Also checked Detect Good (http://www.dandwiki.com/wiki/SRD:Detect_Good), it clearly cuts difference between normal good creature and cleric/outsider. Cleric of same HD as you glows equal brightness but idea is that he saw your eyes which tell your a immortal. So he makes logical assumption very least that your a celestial (not neccesary ghaele and I edited it out).