The Tunnel to Kharanos

Whitebeard was satisfied that he could accurately report the trogg situation to Ironforge. Lorich was an obvious courier, much to his chagrin. When pressed into the service of the Bronzebeards, he was never one to shrink from duty.
Mountaineer Thalos didn't want to let Lorich through because of the trogg infestation. He relented upon hearing the importance of the information Lorich carried. This did not make Lorich feel any better as he stared at the last fire before the tunnel would be dark. He had faced down troggs before, in the open. It was troggs in the dark he was not so sure about.

In the Cave of the Frostmane

Grelin Whitebeard only sent Lorich Flatiron onto the cave to clear out some of the Frostmane trolls as a show of force. Lorich sensed there was more there than just trolls. There was treasure, Lorich could feel it in his bones and smell it in the air. Lorich did not seek out it's secrets merely for the monetary gain, although that was nice. He relished the search and eventual discovery.