'What was that noise?' Something very large sounded like it was moving quickly through the forest. Mitch knew that there were lots of different animals who lived there: horses, deer, rabbits, the usual... and then, according to Alice, there were other creatures that were not so usual at all.
He hesitated, listening for the sound again. 'Maybe I should go back in the mansion.' He squinted his eyes... He thought he could see some movement.