Maybe it was following Alexandra's scent which led it into the old factory, and Martha tried to fight it and it fought back. Still doesn't mean that it will automatically attack everything that it comes across in the Lands Below. Although if Alexandra's scent/trail is still present there, that will lead it straight to the Generous Ones, haha!
Re: Um, what about Quimley?
Maybe it was following Alexandra's scent which led it into the old factory, and Martha tried to fight it and it fought back. Still doesn't mean that it will automatically attack everything that it comes across in the Lands Below. Although if Alexandra's scent/trail is still present there, that will lead it straight to the Generous Ones, haha!