Merlin hurried to the door, stumbling a little on the way. Magic, he was used to. Strangeness and surprises and adventures? He was familiar with those as well. But this place... this world... it had him totally off balance. "Hello? Who's there?" he called as he neared the door, needing a moment to figure the lock out again anyway. In Camelot they just used keys, sometimes latches. Not these strange, twisty turny things.