This zone is comprised of 4 levels (4 including the entrance.)
After zoning in, head up the climbing wall and this is where the first mobs are.
All mobs on the second floor are linked with 2-4 mobs each.
Once a path to the elevators is clear, then head up the elevator to the 3rd floor to spawn either
Gorenaire
or
Talendor
at the time.
To spawn Gorenaire or Talendor, there are two statues.
Summon Guardian of Ice
will spawn Gorenaire, and
Summon Guardian of Fire
will spawn Talendor. Only one of the two names may be spawned per run, so yeah you can't kill both in one instance! [EDIT 10-JAN-15 It appears you can now do both in one run]