After taking the quest, exit the Temple through the southern exit and head east. There will be several patrols of the Shadow Army to take out. Once your party gets to the clearing that leads to the Tower of Strength you will notice the lava pools of the Lake of Fire to the south. Head over the bridge, you will have to fight a few groups of Obsidian Furnace Drakes (sometimes supported by a Smoke Walker) and there is one Infernal Wurm on the way to your left. Using Maelstrom is highly effective in defusing the threat of the Drakes.