Now, let us take a look at Ark. He introduced a Dark Elf. Say, that Dark Elf seems suspicious! By golly he's an agent of the Empire, who was threatening the Gnoll Tribe to defeat them and make it easier to take over Estermere! 

Now through that, I've connected him to the Empire and to the War that is brewing, which say, would give him a motivation to fight the enemy. Because they were jackasses to the Tribe. 

... Whiiich I'm gonna do.