In the dense forest around a town, there is rumoured to be some overgrown ruins of an ancient temple to Taal. It is rumoured that the temple was attacked years ago by chaos mutants and beastmen, who destroyed the temple, all except a small wooden idol. The surviving clerics of the old temple will tell tales of how the chaos creatures are warded off by its mysterious power.
Maybe the old priests are to old to recover the idol, and want someone to get it for them?
Maybe the players will be drawn by the rumoured powers of the idol?
Maybe there is an impending beastmen attack on the town, and the idol could be a chance of survival?