Runes of Magic US / AU

It's actually fairly easy. First, go find the class trainers. They're inside an open structure inside the main town. Choose your secondary class. Be aware that all of them have screwed up "Sys00000" type names right now, so you'll have to hunt around for the class you want. Bet those get corrected in one or more future mini-patches.

Once you have your secondary class, you will have the Logar transport skill under the General tab in your skill list.

The other option *should* be to finish the boss quest in the instance. I believe that once you turn it in, you are allowed to escape to the outer world. I haven't done this yet, but used the "second class" option above to leave.

I'll go back and finish the boss quest later.

Once you finish the boss quest, make sure you go up the stairs and click on the statue. You need to right click the statue (once you have it in your inventory) and bring it back a couple places. If you failed to grab the statue then you probably need to have it sent to you because if you go back in, it's no longer there.

Addendum, since I finished that questline earlier in the evening.

As Kista said, go to the statue. (You don't actually kill the boss, or at least I wasn't able to. He couldn't be attacked after he'd reached about 10% health.) Walk past the boss, then click on the statue. It will go into your pack. Right click on the statue icon in your pack and accept the quest. Run forward and you will get to the instance exit.

You will then go on a series of "fetch it" quests. One of those leads you back to the instance. Go inside, talk to Sindar and get his quest. Then talk to five of the NPC Dwarves who have to go back to town or camp. You then have to report to another NPC for more run-around stuff. Do all those things, and eventually you will be informed that the "statue" has awakened, and you're to talk to her--the Princess whom you rescued. It's back in the central town/city area.

Once you have talked (and walked) with her, you will become the Defender and pick up another quest from a nearby NPC, use the Snoop to 'port to Varanas, and you then go talk to Daris in the Class Hall to complete the quest chain.