Al Apparated in, checking under the bed for the forgotten books, quills, or notebooks. In his pocket was a note with the house address. Severus gave it to Al with strict instructions of not revealing it to anyone but the intended target.
If Severus keeps my secret safe and I keep him a secret in return, Al contemplated, thinking fondly of the night of Fidelius casting, it should be a secure arrangement.
Scorpius said something. "What?" Al asked idly, as he was instructed to sit.
He blinked. "Wait. Why? Is the house still too narrow? We can expand it this week, I'll look up the spells."