It was Bandos who brought the ogres with him, in his crusade to destroy Lougrim and wipe out the garou. The ogres were powerful and deadly brutes, that smashed through the garou defences as though they were paper.
When Bandos left and the war stagnated, the ogres discovered peace for the first time in their lives. It was, refreshing. When some of the Bramblemead villagers left to travel north, the ogres followed them. When they arrived in Emberwood, the ogres offered to lay down their weapons and pick up farming tools instead.
For a while it was peaceful, even pleasant. The humans and ogres worked side by side and built a camaraderie that could have brought the region into a new age of prosperity.
Alas, that was not to be. Now these zogres wander the region with murderous intent. Hulking undead beasts capable of tearing a person a part with their bare hands. They see no reason. Seek no understanding. They exist only to destroy all life in their path.