The Great Beast has what amounts to a general direction of the Shadow, which is only part of the puzzle as I imagined it. This said, [@Mr Rage], if you have a plot device you want to acquire, feel free to - I would say it would work well for you to capture it, then have your entourage attacked and forced astray through the tunnels. That way we have yet another villain, a vampire, an item you needed and only one step closer to the Shadow, but at the same time, far from any true successes.