Harry kept a blank look on his face as he thought over what Serenus had said. Of course Sirius had included Serenus in his mission to make everyone responsible for one another; Serenus was already 100 times the caretaker his brother had been.
He decided that it wasn't as if their relationship would change very much if Serenus wanted to keep an eye out for them. Faelan might like someone older in his life. Harry was done with trying to make a family for himself, but he wasn't about to turn down a friend. Especially a friend with children that actually liked him.