She noticed that the air here was odd.  There was a fog, a mist, that blanketed the landscape.  It was a light mist, but it began to obscure everything that was more than a thousand yards away.  She could see mountains in the distance far to the north, but the landscape otherwise tended to vanish in the fog far off.  She couldn't even see the far side of the lake in any direction.<br/><br/>Despite Reimu's best efforts at stealth she saw someone watching as she crept towards the fortress.  The wooden palisades appeared to encircle a very small town, more a fortress than anything else.  As Reimu approached she saw the very tops of heads watching her, just barely peaking over the top of the walls.  Walking around away from the lake, she came to a large wooden gate, firmly closed.  A little above her eyeline a slit in the door slid back, and a pair of wary looking eyes looked out at her.  They studied her dripping wet form, and Reimu got the impression that they were carefully appraising her body.   The eyes moved away from the slit after a moment and she could hear a voice speaking to someone else, "She looks uncorrupted,  She's soaking wet, she may have just arrived."<br/><br/>The brown eyes were replaced by a new set, piercingly blue, and a voice spoke, "Well girl, what are you about then?"  The voice was gruff and gravely, and immediately Reimu thought of an old man.  But an old man with some power yet in him.  The kind of wise sergeant at arms that she couldn't fool or trick, but usually just did her best to follow or avoid.