to get to lorvis you must:
first locked gate [near the teleporter] - jump on the platforms and find the switch there
second gate should be another platform sequence
third gate there will be wooden staircase that leads outside to a ladder. climb it solve the puzzle sequence [it's not hard] and then there should be 2 ways one going up and one down. if you need to solve the loot the temple quest head up if you need to get to lorvis head down.