Adrian was beaming from the show of affection Lydia just gave him as he waved back to her, it made him feel all warm and fuzzy inside. After she was out of sight, he ducked behind a corner and turned into a very thin mist, something much easier now that the sunlight was diminishing. His transformation complete, he took off into the air and rushed in the direction that Lydia went, it didn't take long for him to spot her from up above. After he had found her, he dived down behind her and followed her to her home, curious what her parents were like. It would be a good idea to learn a bit about them before he met them face to face after all