Just how is Aleria trying to find the portal from the outside? The chambers didn't have any windows. They're sort of on the interior with the passages leading through the tower's walls from stairway to stairway.<br/><br/><div class="spoiler_container"><div class="spoiler_header" onclick="hideSecond (this);" role="button">Chamber pic, larger</div><div class="spoiler_body">(http://wiki.guildwars.com/images/b/b5/Hall_of_Monuments.jpg)</div></div>