Humphrey was appreciative of the older girl's help, and gave her a friendly smile. "By no means do I know everything, but I think between dad and me we got the bases covered." he said, and watched Casey until she gave him a nod. When he checked the time as Casey had said it was getting late he realized their parents were probably wondering if something happened to him.
"We don't want to worry them too much, sis. Adeline will be there at Hogwarts when you get there with me." he said, and looked over at the blonde. "Seriously, thank you for being so kind about all this. Not everybody is so friendly. Bye." he said, giving her a cheery wave and let his sister give a quick good bye as well before they went to the restaurant to meet up with their parents.
They were almost twenty minutes late, but once he explained what had happened they nodded. "It's more important that you found her and made sure she wasn't getting into trouble. Time management is a tricky thing, even for us adults. You'll pick up on it." his dad told him, causing Humphrey to feel bad about it since he was the older one and should have done a better job. Still, the words were a small comfort, and they sat down to the meal. Surprisingly, neither him or mum mentioned extra chores.