There are 2 guards at the bridge and one teleporter. At lvl9, the quest is given by Rena, so you should already have done it. The other guard has a quest at lvl10. Rena was the one that gives the quest called Female Courage in which you had to get an Albino Bear Trophy.
For more information you can find out about quests in this link:
http://www.regnumzg.com.ar/index.php...ests&Itemid=43
edit: I just realized you may have meant that you have done the other quest given by Vahod. However, to complete that quest you must've passed Rena on the way :P