Back and there again

This quest starts after you've returned to Maj'Eyal from the Far East in the There and back again quest.

In order to return to the Far East, you need yet another portal. First speak with the Elder in Last Hope, who will direct you to speak with Tannen, an elf who lives in the north-west section of town.

Tannen will ask you for the Orb of Many Ways for study, and directs you to obtain (yet again) a Blood-Runed Athame and Resonating Diamond. You will go look in Reknor, as the orcs had a working portal. At the location of the portal you will fight a boss (who?) and he will drop the necessary items.

Upon returning to Tannen, he will ask you to check the Telmur, tower of Telos for a text on portals, while he works on building your new portal. In the tower you will find the Shade of Telos, who will drop the Telos Staff (botom part) but no book.

Upon returning to Tannen, he will reveal himself as a traitor and transport you to his tower, where you will be forced to fight both him and the Dragon Golem. Defeating him will return the Orb of Many Ways to you. Upon exiting the tower, Meranas the Herald of Anglowen will greet and tell you they suspected Tannen (thanks, guys, next time stop him sooner?). He will then build the portal for you.