Lucy is Nigel Bristow's charge.
Lucy is a pink piglet. She's small enough to fit into Nigel's bag, although it is unknown if his bag is enchanted to fit larger things inside.
She's a friendly and sociable, and is considered great company. She is a little self conscious of her appearance, and can get excited when there are lots of new people. When she gets really exited, she shows it through flatulence.
She has been Nigel's charge for over thirty years.
None of her abilities have been shown so far, and there are no implications that she can speak human languages. She can however, communicate with Nigel, which means that she can understand English.