Albus isn't expecting to see Lucius Malfoy. He has grown used to the fact that Lucius is away from the Manor most days. He and Scorpius have had the run of the place, which was how Albus liked it. No one was looking over their shoulders or breathing down their necks. They had time to puzzle out the mystery of their sudden time displacement in relative peace. But now Lucius was there, glaring at him with an expression Albus had seen on Scorpius' father's face from time to time. It didn't give him warm fuzzies.
"Dinner? Oh, uh, I suppose? They usually set two places for me and Scorpius but... Are you going to have dinner with us?"
Malfoy Manor
"Dinner? Oh, uh, I suppose? They usually set two places for me and Scorpius but... Are you going to have dinner with us?"