Collect an Arcane Gate Seal spell somewhere behind the second door to the left after zone in. The location is random but not gated behind aggro mobs. It looks like a sheet of paper that is flapping in a breeze (see example to the right).
Click a scribe's Arcane Podium at ( 145, 3, 15 ) /waypoint 145, 3, 15 twice to activate the spell and open the doors.
Return back to the center room at ( 0, 0, 46 ) /waypoint 0, 0, 46 then through the first door to the right after the zone in door.
Find the crystal for the damaged portal anchor at a random location in the room at ( -48, 4, 20 ) /waypoint -48, 4, 20. This is a blue shard or orb somewhere on the floor.
Retrieve it and repair the damaged portal anchor at ( 55, 1, 25 ) /waypoint 55, 1, 25 through the first door to the left of the zone-in door.
Click the teleporter behind you at ( 53, 1, 21 ) /waypoint 53, 1, 21.
Speak to Queen Alwenielle. Follow her to the crystal.